Not to "rip" on you, but . . . .  .this comes across as typical cheapness ~

As the others pointed out - you got treated very well from your shop. It cost money to suppy services and goods. Not only the raw materials and labor but don't forget his overhead. Insurance alone, while you're dicking around in his shop and hurt yourself, needs to have some value priced into his services . . . . . . .

The reason I'm commenting with this thread - you are the third example, since Saturday, of a person not realizing the cost of business - all the costs, associated to have and operate a business.

Edit: for clarity/spelling