Cellphones

I hate it when in concerts or quiet events (lectures, class, movies), people make it some habit to keep the ringtone to max, and even wait it out for the whole world to hear that they have Usher's Yeah as their ringtone.

Now, with those ear things you can get, you can talk to literally no one in front of you and it throws me off every time I see someone walking and talking to no one when really they're on their phone deal. Great invention, annoying contribution to society.

Jam it back in, in the dark.