Just the other day, there was a special report on an envelope containing money with a note, dropped off at Sears (department store).
The sender said he pinched $20 from a cash register at Sears decades ago, and the money in the envelope was the $20 plus interest.
Mom, if you are reading this, don’t start calculating interest on all the money I stole from your purse when I was growing up. I already paid you back. (I think I did).