Didn't care for much of them. The only one mildly humourous:
In Luis' league, the loser has to go to a supermarket on a busy Friday night. And what does the loser have to do there, Luis? "Pick up three items only: a large cucumber, lube, and condoms. And pay for them in the busiest line he can find.
I only play in money leagues and usually find losing my money humiliating enough. Good thing it hasn't happened.