Had a guy where I work put on 3 months administrative leave (without pay) for making the same hand gesture to another employee a couple of years ago. The offended employee felt "threatened" and opened a workcenter violence complaint.

The entire place had to go through a whole battery of "Workcenter Violence" training.

When the "offender" was allowed to come back to work he was only able to deal with the place for just over a month before he had had enough of the PC'ness and got a better job and left.

So, it's bad to made a gesture of a gun with your hand but if you pick your nose at work - in front of customers and co-workers, it's okay. (Explanation: A new employee just started at my wofes work - in her section - this woman is constantly picking her nose and her breath is so horrid that it can be smelled from 6 ft away -- oh, my wife works in the Customer Service section of the Peterson AFB Exchange).