People like this are a "special" breed, I'm sure this guy has applied this tactic to other situations with some degree of success. I fixed a car window for a guy, quoted him $50.00 on the phone and charged him $40.00 after all was said and done, saved the guy around a $100.00 for the service. The reason the window was screwed up in the first place was because the car was t-boned at the rear of the door and the entire car was twisted. The arrangement was to get a window back in the window opening with no expectation of it rolling up and down due to the condition of the door. So the douche rolls the window don and it gets stuck open. It took me all of 15 mins to get the window dislodged and back into it's hole. No charge.. a few days later the #$%* ass shows back up with the same problem. I told him it would be $50.00 if he wanted me to rig it again, the guy starts getting pissy about it, saying #$%* like "I paid you too much, and asking me why I charged him what I did because I had no overhead" just ridiculous #$%*. I reminded him of our original agreement and he left. He showed up at my house two more times, the last time he stopped by I went bat #$%* on the guy running across my yard with a screw driver and pointing it in his face and told him if wanted to get every window in his heap busted out and every tooth in his head loosened up to come by my house again.