The guy dropped a gun. That in itself isn't negligence.
Carrying it in a manner in which the gun was not secured, and likely to fall is.
Dropping a gun and trying to catch it is foolish, if not neglignet.
I know that you do not Carry Plaxico style. You know you do not Carry Plaxico style. This guy was a Professional
*, and he did not know you do not Carry Plaxico style?
*....but was he the only one, in this room, that he knew of, Professional enough.....