Know when to hold 'em

I went to the supermarket Coinstar to trade in my coins for cash.

The machine kept spitting back out two dimes, so I kept putting them back in. At the end, the machine took my dimes and the total came out to be $37.19. I would have have gotten $37.10 in cash if I held on to my last dime. Instead, when I went to the cashier, I got back a nickel and 4 pennies. Ha ha.

I kept putting that last dime back in, when I didn't need to. I put a lot of effort to trade my dime for 9 cents. So the moral is: don't be stupid. XD