Would you do business with someone, who kept asking questions like that?
Show me.

I'm all for customer relations, but if some nut case kept asking me to show them everything, including breaking out a meter to prove to them that a switch was bad, I'd tell them to hit the road, and find another electrician.

Mechanics are just like electricians, the best ones don't advertise. They have enough work by word of mouth, to keep them busy.

You have to ask around to find them, If you picked one out of a phone book, then shame on you. You are asking for trouble, as he is working off a pricing sheet of his own.

It's all about trust, even with us, when people trust you, they don't ask questions.