One Penny!
“I worked the customer service desk at a grocery store. One afternoon, a guy came storming over after getting checked out and threw a package of beef in front of me. He starts going off, yelling and cussing at me because he was supposed to get a $3.54 discount, but the register only took off $3.53.
He was screaming at me that he wanted his penny back, and that it wasn’t even about the penny, but it was the “principle of the thing.” By the time he was through, he had yelled at me, my customer service manager, and our store manager on duty. As soon as I gave him that penny though, he shut right up and left. Principle of the thing, I guess.” – Reddit user Emro08
Well, who thought someone would be so mad about that one missing penny? We think everyone around that angry customer would have spared a dollar just to shut him up.