Cigs: Not telling him he couldn't smoke, but that he could only smoke outside bare-chested one winter
Eating: Mirror at gut hight in the kitchen
Drinking: Reading that Infinite Jest section [pick one] twice a week
Weed: Picked a fist fight with the guy I bought it from (he won) (this section is just a joke I do not commit crimes)
The only thing a human man can't give up is onanism (I don't believe those who say they do).
That's actually an interesting one - it depends on your jurisdiction. E.g. in all Australian jurisdictions (and quite a few US states), one cannot consent to serious bodily harm. Some jurisdictions allow consent as a defence for "lower" assaults that don't meet the threshold of serious bodily harm. In Australia (I'm not as familiar with other countries), there are usually explicit carve-outs for sports like boxing, but only when under the purview of a licensed boxing authority.
