I brought in a computer to have it diagnosed for a...

I brought in a computer to have it diagnosed for an issue I was experiencing. After having it for half a week they said that they were unable to recreate my problem. I came in, booted up my computer on their system, and the problem immediately presented itself. After that, I had to stay there and do all the work to fix the issue myself because their repair technician knew less about computers than I did. The cherry on top is the nonnegotiable 25% restocking fee on all of their parts.