1. make sure you live in a location where it is legal to record pranks without having the other person know you're recording
2. don't repeat call - that is harassment
3. beep out enough information in your call that there is no way to figure out who you called
4. don't curse people out or threaten anyone unless it's clear they know it's a joke or they started it first
5. no 'theft of service' -- if you order something and they didn't know it was a prank before hanging up, call back and let them know
6. don't give out credit card numbers in a call -- could be in deep shit if you accidentally give out a real number
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---- following these rules can make it more difficult to get a good call, but at least you don't have to worry about getting into trouble, or having your call being deleted from the forums here, or getting banned -- and, if nothing else you have the satisfaction of knowing that you're a great person
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