I stole some little things from school, like a maths book, it was actually an accident, but they didn't notice, and if I bring it back, they will notice, and I will get in trouble.
I also helped my friend steal socks from a shop. We brought some for a Cosplay, but she brought the wrong type, and she'd ripped the packet, so we took the right ones and put them in her pocket. They were the same price though, so we didn't REALLY steal anything. We'd paid, just for the wrong thing.
I didn't feel bad about it, I mean, a book and a pair of socks, not really that bad.