I was going to put this in the "Beggers, Moochers and Scammers" thread but upon reflection, it seems to be a better fit here since the subject certainly thought he was special!
I know someone whose husband, George, has a full time job but does a service job on the side (think something seasonal, like pool maintenance.) for a small group of people they know.
As soon as it gets warm, they are flooded with calls from everyone asking them to come by and service their pool. He is paid and most of the clients understand that he has a full time job and will do the service as soon as he can but I've heard awful stories. Some people can be very demanding and don't like to wait. AFAIK, George doesn't have any sort of contract with anyone dictating that he needs to respond to a call in any sort of time frame, he just has the ability and license to do the service and he's someone they can call when they need it. If he can't do it in the time frame they want, they're free to call anyone else.
Recently, they got a call from someone they did not know ("I got your number from Joe!") and this person demanded George come out immediately to service his pool. George told him that the earliest he could come out was on the weekend (in three days). This was "unacceptable!" and George "WILL come out and service his pool TODAY!!"
George told the man that is would not be possible and if he wanted to set up an appointment for Saturday, he could come out then. The man hung up on him.
Like the others (and a complete stranger to boot) he does not have any sort of contract with George, I have no idea why he thought George had an obligation to drop everything and scurry to his house to service his pool!