I dont' understand how, while ordering coffee and a doughnut a firearm "accidently" discharges. My experience is ... if you don't pull the trigger it won't go off, but, the story is very vague about how this happened.
There is NO excuse for him leaving the scene but he is commended for coming forward immediately afterward.
I don't believe there is anyone amongst us that has not had an accidental discharge at least once in their life. For me, it was at the range, fitting a new shooter's glove and new custom target stocks for the first time with a S&W Model 41 in hand pointed safely DOWN RANGE, thank, God.
PS: watch out for those (us) old farts. LIFE is not a very long time for us if we get in trouble.
