Geez, I don't really know. Quite a few. I have 4 gun safes full of long guns and handguns. I don't know what is going on in there when the door is closed. The other day I opened up one of the safes to do a regular routine cleaning/wiping down of the guns in it and I noticed something different. The last time I was in there I had apparently put my Berreta O/U too close to my 870 Super mag. Low and behold, right between them was a cute litte 870 youth model 20 ga.
Also, when I checked one of the other safes, setting between my Ruger #1 and my Browning Micro Hunter was a Savage 11FYCAK 7mm-08 youth model.
Well at least my grandson will be happy. Looks like I'm going to have to put cardboard barriers between all my guns or I will soon have to buy another safe. They just keep breeding in there when the door goes shut.