C.N.
Picked up a nail in my tire yesterday. Took it to the shop to get it plugged. Told the guy "I know the tire is bald and actually needs to be replaced but I only have $7 left until payday, so I need you to plug it."
He plugged it, put it back on the car, and when he came in with the bill, said, "You know we charge $10 for a plug, right?" I told him that the last time they plugged a tire for me it was $6. He said they had gone up, but he made my bill for $7. He just wanted me to know about the increase for future reference.
He could have refused to fix it when I told him I only had $7.