Why?

First: No one realizes the risk I am taking while doing this. If I make mistake, I would be held responsible. I am repairing things that no Customer Support does.
Second: No one understands that when I fix something that was troublesome, it’s not my responsibility if another (newly installed) “The registry cleaner” don’t work as expected. I cannot control what users do after computer is saved. And some of them came also to complain after browsing adult sites (!).

Third: No one cares if you are on vacation, or it’s after hours, or when you tell them you are busy. It seems it doesn’t matter what do you set as professional rule, as your schedule; If they are frustrated, why shouldn’t they take it on you?

Fourth: They couldn’t handle computer. It’s not their fault! They are smart, normal people. It must be the fault of manufacturer, or help desk, or neighbor, or - somebody! Someone must pay for their frustration!

Fifth: I want to be payed for my work. They agree. But after job has been done, and some other problem appear, they think new intervention should be included in the price they already payed, previously. Well, it doesn’t work that way, my friend.

(I will certainly add more later, if and when I get annoyed either by mere memory of it, or new issues…)