Just because you happen to be a nose picking hack doesn't give you the right to generalize. I'm sure it's much easier to mess things up with a hammer and 2x4 than it would be with the proper tools. That said, a guy that really knows what he's doing wouldn't be banging on a bike without the correct tools for the job.

There is no way one consumer could have experienced as many problems as you seem to have first-hand knowledge of. This leads me to the obvious conclusion that you are warning readers here to avoid the shop foolish enough to employ a younger version of yourself.