And I purposely put "incorrect change" in quotes because I do not mean the wrong amount of change, but rather less-than-optimal denominations of change. For example (U.S. currency): 61 cents in change should = 2 quarters + dime + penny *NOT* 6 dimes + 1 penny. It drives me nuts when the vending machines at work do this (just got 4 dimes for change), but it's even worse when a human cashier does it. I kid you not, once a cashier tried to give me eighty cents in dimes and I thought "okay, she's out of quarters" except that her quarters section of the change drawer was filled to the point that I could see it from my side of the counter. I watched her counting out the dimes, and as she got to eight I smiled at her and said in a semi-humorous voice "I know you're not going to give me eight dimes..." and she kind of looked confused at me, and I clarified "three quarters and a nickel will do." Maybe the fact that I still do not own my own washer/dryer (hence quarters are a valuable commodity for the pay-machines in my building) makes me cranky when I get less than optimal change.