I accidentally shoplifted shampoo once. I was out with my mother buying some items and she gave me a bottle of shampoo to hold on to, but since my hands were full, I slipped it into my pocket. We walked out of the store having paid for everything except that, having completely forgotten.
We got home and I realised I still had it in there and I wanted to go all the way back to the store to pay for it, but mum was just like "Nah, we're here already, they won't notice"