Fresh doughnuts are delivered daily to the large grocery store down the street. Each day a lady who works here goes to that store and buys a dozen for our staff, visitors, and customers.
That lady has the day off today, so I went to the store. Knowing that the dozen always costs $4.35, I grabbed a five-dollar bill and just left my purse in the car.
At the serve yourself doughnut station, they were out of the nifty boxes that hold a dozen, and had some boxes from the deli in the usual doughnut box spot. These boxes only hold 8. That's OK, though - 8 will be enough, as we have fruit left over from yesterday.
I walk the mile or so to the cash registers, wait in line for a while, and am amazed when they charge me $8!
I protest: "We buy doughnuts here every day and they are always $4.35 a dozen."
The cashier: "But you didn't get a dozen. They are $1 each if you don't buy a dozen."
"But you were out of the boxes... this box won't hold a dozen."
"I'm sorry, but you will need to go back and get 4 more doughnuts or pay $8."
"That is ridiculous!"
"I am sorry, ma'am, but the doughnuts are $1 each unless you buy a whole dozen."
"But I don't want to walk all the way back there!"
"I can have Chuck walk back there and get you 4 more doughnuts."
<I hear the line of people waiting behind me groan.>
"While I was waiting in line, I was so hungry that I ate 4 doughnuts, but I'm an honest person, so I need to pay for them."
He took my $5 and gave me change.
I really should take the rest of the day off.