The dumb things I do

So after work this evening, I had to go to the store to buy a few groceries. I decided to use the self check-out, where you scan and bag your own items. Anyway, when I was paying, I asked for $20 back. I put my groceries in my cart. I grabbed the receipt and put it in my purse, and I left my $20 in the machine. I'm the kind of person who will pay for something and walk away without my bag. Or I'll give the clerk a 20 for a soda and then they run after me when I'm leaving without my change. But this time was worse. Because I had actually consciously asked for money back. And then left it.
So I got home, realized I didn't have the money and totally thought there was no way anyone would ever have turned it in. So I decided not to even call. And then I started thinking, "what would I do?" And of course, I'm usually brutally honest about that kind of thing. When I go to Starbucks, if they forget to charge for the extra shot of almond I get, I tell them they're not charging me enough. Anyway, I decided, why not just call? It's not going to hurt. So I called and some lady had asked for $20 back and when she got her money, she had $40, so she turned in the extra to customer service. So in the end, I got my money. Anyway, I figure if I was the sort of person to keep the extra money, I would have just assumed everyone else would do that, too, and I wouldn't have even bothered to call. But in the end, honesty pays, because I thought there was a chance someone else would turn it in, as well.
Moral of the story: Be honest. And don't trust me to go to the store for you.