My little brother has a habit of snooping in my things and sometimes taking a dollar or two from my wallet. I've been saving up to help a friend with a medical problem and had the money for him in a marked envelope (reading: "_____'s treatment money") in my purse, so I was nervous when I realized my brother had gone into my purse again. It made my day to find that instead of taking money from my wallet or the envelope, he put $20 into the envelope.