If I find it on the ground, I won't take it unless it's a nice mechanical pencil. Wooden pencils irritate me because then you have to sharpen them, and I hate sharpeners.

But I wouldn't take it from someone's desk. There was this one girl in my fifth grade class that had a crap-load of stolen pencils and other stuff in her desk, and most of them belonged to the other kids. People who take stuff from people's desks should be hit in the head with a coconut. It's just not nice.