Eat a bunch of food that makes you gassy (here in Arizona that would be Mexican food). When you sleep over at someones place (girlfriend, boyfreind, someone you just met, etc.) wake up early and take a huge shit in the bathroom. No fan. Shut the door. Leave the stench for them when they get up to take a whiz.
I had to roll out of that bitches house, but I left her an Arizona oven before I split.