The other scenario involves a bet between friends. That really makes things interesting. Say you bet your buddy $100 that he can't go without drinking for a month (as the guys on DiggNation did). Once you put money on the line, all bets are off. Or... they're on. Either way, you can't really predict what will happen, because it usually involves a behavioral issue with one of the friends. Or it's just something stupid and it will still be funny. People taken out of their routine tend to act strangely over the short term. It's funny how many people will find a new habit to fill the void. For example, my boss from high school and college (who owned two restaurants down the street from each other), tried to quit smoking a few times. Each time, he couldn't continue, because he'd replace the smoking with eating, and he'd gain weight. So, to keep off the pounds, he'd smoke again.
What I think I'll do is I'll make a resolution to try something new in my free time. I've decided therefore to try writing a book. Nothing crazy. Maybe a short story for now, but something. I'm hoping to start graduate school soon, so I don't really want it to take up all of my free time. There's no real rush. Unfortunately, the plot line so far is kind of cliche in that it involves a sort of alien culture within modern society. So far it's not making much sense. I just need to find a hook and I'll be all set. I'll keep you posted.
Have a safe and Happy New Year!