I
once accidentally loaded a 20 gauge shell in my 12 gauge shotgun and heard an awful "click" asI had the largest buck I've ever seen within 20 yds of me. It watched me check and make sure I had a shell in there too! Raised back up, and "click". Then, big buck runs off.
The pin had punched just outside the edge of the primer twice. Good thing too I guess.
VERY few times can I go in the woods and not re-live that horrifying moment. It'll haunt me forever. That was about 15 years ago.
Hey, you said "anything". [:-]