['So i did some stupid things when i was younger. But i feel bad about one of them to this day.', 'Oh no, what did you do?', 'I stole 50 bucks from my brothers wallet. He was going to use it on a date. Girl never called him back.']
Oh no!  Does he know you did it or did you never tell him?  Yeah, we all have things we regret, its how we move forward and resolve the situation that matters.
I once stole 50 bucks from my brothers wallet. End up he was using it for a date and the girl didn't ever call him back.