The G19 recommended above is a fine pistol, but if it's never going to be a concealed carry weapon I'd go full size with either the Glock 17 or the Sig P320 full size. There would be no reason for a round to not be chambered or to not have a magazine inserted. There's no safety to worry about and I pretty much guarantee that if you're stressed you'll have a very firm grip on the pistol.