There is a decent amount of them in my area. It makes my parent's decent sized back yard look very cool at night. As a kid, I squashed one from time to time on the ground so the light would smear on the ground for a bit. I quickly realized how cruel that was, so that didn't last too long. I also used to flash a flash light towards a pack of them so they would try to have sex with it. I was a weird little bastard.