Payphone Perverts
On the Southwest corner of California and Sidney sat a gas station/repair shop. This corner was also host to a payphone. We would sit in groups of 2-5 girls waiting for the perverts to call. The phone would ring, and we'd all bust out in giggles. Eventually someone would answer the phone.
"Hello?"
*heavy breathing*
"Hello??"
*what's your name*
"Ethel." -any name would do, as long as it wasn't a real one.-
*what are you wearing*
"I'm wearing a dark blue nighty. It's really see-through."
*does it have ruffles?*
"Why, yes, it does! Are you watching me?"
*heavy breathing*
"Can you see how short it is?"
*heavy breathing...yes..pant..pant*
-Now it's time to give the phone to the next girl in line.-
"Hi...I'm Ethel's sexy friend. I'm really sexy..."

This would go on until we got bored. Then we'd say something like, "Hey, Fuckwad! Go jack off somewhere else!" Then slam down the phone, and giggle ourselves silly.
It was great in a lot of ways. We got to release a boatload of stress, we got to cuss, and we got to feel like we had some power over a grown-up.
Sometimes the cute guy who worked at the gas station would call out to us. "Hey! Get offa that phone! Quit messin' with those perverts!" And we'd all run around the corner to "base" and giggle some more.
Childhood innocence is really amazing.