Help my Dad stop smoking.

[Yootopia]

Make him smoke Sterling. That'll stop him.

[Greed and Death]

kick him in the nuts every time he smokes.

[Poliwanacraca]

There was a study published a year or so ago that said that specific tangible rewards for going without cigarettes for a given length of time made a noticeable difference in success rates, even when the rewards were pretty small - things as trivial as "If you make it a year without having a cigarette, you'll get $100" helped boost success rates. It might be worthwhile to try to incorporate some sort of reward system into whatever other methods he's trying - if giving your dad money feels weird, as it probably would, you could always go with something like "at the end of every month you haven't smoked, I'll treat you to dinner at your favorite restaurant."

[IL Ruffino]

Tell him to switch to Nat Shermans.

[Epicnopolis]

Hey all I have to say is good luck, and Allah speed.

[Klinti]

Make him smoke Sterling. That'll stop him.

you should do a lot of activities with your dad so he could have less time to smoke and little by little he will surrender.

[Sarkhaan]

Chantix is good, but has some pretty nasty potential side effects. It is still defiantly worth a shot.

As a seperate method, he can try this:
you must continue smoking for one full year from your "quit day". You may never buy the same pack of cigarettes twice (so if he usually smokes marb lights, he gets one last pack of those on his quit day, then can never buy them again. Say he buys camel lights next...then can never get them again). He must force himself to keep smoking, as a form of negative reinforcement. This worked well for my mother.

Second method that can work with or without chantix (worked for me, but I did end up going back to smoking after a pretty rough patch of life)
For the five days prior to quitting, he can only smoke four cigarettes. Every time he takes a drag, he must snap an elastic band on his wrist. Any time he has a craving and doesn't have a cigarette, he must snap the elastic band. On his quit day, throw out all smoking related things. If he can change any routines (the route he drives to work, if he smokes on that route) this will help. Snap the band for every craving untill they subside. Tell him to walk instead of smoke.

[Secruss]

[H N Fiddlebottoms VIII]

You can't make him stop. Only he can decide to stop smoking, and when that happens he must commit absolutely without a thought to consequences or other alternatives. Another hobby is useful, which is how all the other things work, but first he has to say, "I, as a human with free will (or at least the closest thing currently known in the Universe), am deciding not to continue smoking."
It sound obnoxious, but strength of will is the only thing that has a chance in Hell of working.
Rewards (as Poli mentioned) can help, but the first thing is deciding.

[Gun Manufacturers]

I think I do have some actual advice, now that I think about it...

Does your dad work? If so, have him take a few weeks of vacation, sick, or personal days, or some combination thereof. Once this is done, take him to a place with a door that can be locked and unlocked only from the outside. This place should preferably have access to food, water, and a toilet, and possibly a shower.

Once there, trick him into going in alone, and then lock him in. After a sufficient amount of time, let him out. He should be smoke-free, although he might hate you.

A slight modification to this plan allows it to work as a diet, too.

That plan has another name. It's called kidnapping.

[H N Fiddlebottoms VIII]

I think I do have some actual advice, now that I think about it...

Does your dad work? If so, have him take a few weeks of vacation, sick, or personal days, or some combination thereof. Once this is done, take him to a place with a door that can be locked and unlocked only from the outside. This place should preferably have access to food, water, and a toilet, and possibly a shower.

Once there, trick him into going in alone, and then lock him in. After a sufficient amount of time, let him out. He should be smoke-free, although he might hate you.

A slight modification to this plan allows it to work as a diet, too.

That plan has another name. It's called kidnapping.

Adultnapping (aka abducting). It is kidnapping if you steal a child. Unless the OP's father is still a kid, or is a goat. Then I'm just confused.

[Lynxe]

What worked for my mom was she got sick, and found it hard to breathe if she smoked. She realized she had gone awhile without a cigarette, and never had another.

[Lunatic Goofballs]

kick him in the nuts every time he smokes.

I endorse this.

[Pope Joan]

When I quit, I went to vodka.

It gave me another way to occupy my spare time.

[Greed and Death]

kick him in the nuts every time he smokes.

I endorse this.

If he resist too long switch to steel toes.

[North Occidentia]

Tell him to switch to Nat Shermans.

I endorse this.

[New Central Europe]

Use a fire extinguisher.

WHAT?!

If he's smoking, he's probably on fire. Spray him and you address the root cause.

Either that, or instruct him in the noble art of stop-drop-and-roll.

Mind, if its spontaneous human combustion, he's pretty much fucked.

Nooo, her father is smoking tobbaco

[H N Fiddlebottoms VIII]

Use a fire extinguisher.

If he's smoking, he's probably on fire. Spray him and you address the root cause.

Either that, or instruct him in the noble art of stop-drop-and-roll.

Mind, if its spontaneous human combustion, he's pretty much fucked.

Nooo, her father is smoking [size=too damn big]tobbaco[/size]

A series of valuable resources for persons such as yourself.

[Louis Van Boxel Woolf]

CHANTIX is an American medicine, he tried it, over here it is a medicine called ZUBAN he tried it and it managed to cut down the number of smokes he took. (Before he was smoking 35 a day, after CHANTIX/ZUBAN he smoked 20 a day).

[Megaloria]

My friend quit recently - he's gone two months without a cigarette. He started out by switching to cigars. Not exactly much healthier, but more enjoyable, apparently. Might be worth a look. Now he has himself a cigar once a week and hasn't craved a smoke in over a month.

[Barringtonia]

There was a study published a year or so ago that said that specific tangible rewards for going without cigarettes for a given length of time made a noticeable difference in success rates, even when the rewards were pretty small - things as trivial as "If you make it a year without having a cigarette, you'll get $100" helped boost success rates. It might be worthwhile to try to incorporate some sort of reward system into whatever other methods he's trying - if giving your dad money feels weird, as it probably would, you could always go with something like "at the end of every month you haven't smoked, I'll treat you to dinner at your favorite restaurant."

There's a site for this, just recently set up.. www.stickK.com, partly for dieting but it can be used for anything,

The site is so popular that there are already 32,000 registered users - more than 1,000 in the UK. Users are set weekly goals and once they have provided their credit card details, they are charged a weekly sum (the amount is their decision) if they fail to meet them. Referees - friends, partners, colleagues - can be nominated to ensure that people don't cheat. Dieters pay nothing upfront, but if an unsuccessful report is made or if they fail to submit information within the 72-hour window they are given, then their cards are debited.

The incentive to succeed can be raised further by selecting StickK's “anti-charity” option, where your money is donated to a cause you hate. For example, someone who is anti-abortion could designate a pro-choice charity. “Negative reinforcement can help some people,” says Karlan. Dieters who accept the anti-charity challenge report the highest success rates - up to 85 per cent.

[Jingoist Hippostan]

Has he tried not lighting them and inhaling the fumes? That's a pretty easy way.

[Tranquilizer Cyborgs]

Convince the British Government to outlaw tobacco!!!!!!!11

[Jingoist Hippostan]

Convince the British Government to outlaw tobacco!!!!!!!11

That's probably the simplest, easiest way.

[EvilDarkMagicians]

CILLIT BANG is toilet cleaner, ha ha ha very funny joke (not)

Them's fighting words, bitch. Don't force me to challenge you to a grudge match in the CAAAAAAAAAAAGE.

Your hilarious funniest person on the forum