Tell me about poor timing!
When I was a kid my first handgun was an old Colt New Service in .45 Colt. This was an ex-Mounted Police gun, originally in .455 caliber. It had seen a lot of service before coming into my hands. I did some of my earliest handgunning with this gun. After several years of use, I opened up the cylinder to eject empties and several little "half moons", or crescents of lead fell into my palm. I continued to shoot the gun that way, cocking the hammer and then rotating the cylinder into index by hand. Finally found a new hand, or pawl, to rectify the situation.
This gun later became a customized .44 Special.