There are two shops I will not frequent anymore because of getting flagged. One of those times the very very shiny pretty showpiece 1911 had a flying ashtray in the chamber. The clerk was as surprised as I was pissed off. Anything you handle is loaded until proven otherwise or it is sitting in pieces on the workbench.
Then again I should have known I was not in the best place when I overheard the fact one of the clerks had a negligent at his apartment, a couple days before.