Had a few revolver failures over the years. Had a squib load in a model 25 and the bullet didn't clear the barrel. That put a halt to my shooting for the day. Ejector rod backing out of the model 10s at work has been an issue over the years. In autos most of my failures have been either poor reloads that wouldn't feed in my P-90 when I first started reloading or failure to go all the way into battery when my Kimber was filthy earlier this year. None of my failures in the autos made me quit for the day though.