I had just started working at a grocery store and had this customer come in. He buy about 60 cans of wet cat food. I ring them all up for him he paid for them all, I gave him his change and proceeded to put them in his cart and he asks me "Where is my coupon?" I replied "I'm sorry sir what do you mean?" he responds "I bought all this cat food and I didn't get a coupon!?" To avoid any other fuss I simply called the manager up to the front and the manager asks what the problem is and the customer tells him. The manager responds "I can't make the machine print out coupons it does it at random" The costumer becomes outraged. The manager simply said "Here's a dollar take that as your fucking coupon". Guy says "Thank you" and walks out...
I was facepalming the entire time...