Telemarketing reversal
Telemarketers generally have a script they're supposed to follow as they ask you a series of questions. Now EGBG (which may just be someone named Martijn Engelbregt, I'm not sure) has created a lovely counterscript that lets you take control of the conversation. I don't know if I'll have the chutzpah to try it, but it's very very funny in places, and I find the whole idea delightful.