I had one years ago, I called the lady 1/2 hour before going over there. She said her dryer was broke. When I pulled up into the drive, I could see steam coming out of a dryer vent. Went to the door, a little kid answered and I told him I was here to fix dryer. He said they got rid of the dryer. (real creative answer.) I tried calling phone right there, no answer but I could hear it ringing in the house. I wrote out a bill for service call, and rang bell again and told him to give this to his mother. I also told him (I figured she was right there listening somewhere ) that if bill wasn't paid, my uncle was the district attorney (this was true) and she would have to come to court and it would cost her hundreds of dollars instead of the 50 dollar service call. On bill, I wrote "Service call, arrived as per customers request, and was not allowed to repair. She called more than one service company, which is against the law, as I kept up my end of bargain and arrived ready to repair. ". Before I got out of driveway, lady came out running and paid me my service call.
That was the only time that happened recently. Its really bullshit when that happens to us, people are really inconsiderate.