I have quite a few stories about parties getting raided and teenagers being drug out of the house by their hair and stuffed into cop cars with a few 'accidental' collisions between foreheads and the doorjam. That was 20 years back. Gotta love small town cops.

Have a few 'good' stories too, like once where the door was answered, a cloud of grey smoke billowed out, and the cop took a step back, said "Just keep it down in there. You don't want us to have to tell you again."