I was at a show. This was a smaller show, and kind of a mellow, quiet band. I like to hang out round outer rims of the crowd.

Well, this huge group of mainly girls decides they are going to treat this music venue like a bar. They're standing around (about 7-8 of them) Talking at the top of their voice above the music, non0fucking-stop. With little screams, squeals and loud gales of laughter.

I finally turn around and say "Hey, am I in the wrong building?"

They just look blankly at me. I pause. "Because I thought that this was where the show was, not a crappy bar where I get to listen to good music being drowned out by your stupid, pointless conversation."

One of the girls actually had the nerve to look outraged. The two guys that were with just nodded and they slowly trickled out the door.

EDIT: This happened pretty recently.

I was in the drive through at a fast food restaurant with my boyfriend. We were behind a Nissan and it was pouring down rain. All of a sudden I see a tiny hand dart through a crack in the window and toss out a Coke can.

I was flabberghasted. Not only was this the 21st fucking century and someone was just tossing shit out of their car like we in the 1960s or something, but it was clearly the hand of a little kid!

I got out of the car (boyfriend was driving, obviously), in the rain, and picked up the can. I knocked on the window and the woman driving cracked the window a small bit. She just looked at me with the most bewildered expression. I smiled and said "I think you dropped this," and gestured to the terrified little boy in the back. I stuck the can through the crack in the window and went back to the car.