Well was I surprised today when I got back from town. Very surprised. I checked function before I left by dry firing, and cocking the pistol and operating the thumb safety before loading up to leave. Everything was great. I carried the gun for a couple hours about the town, and when I returned to unload the gun, I could NOT get the thumb safety to disengage. One of the rivets that holds the plunger tube to the frame has come loose. So the plunger inside the plunger tube was protruding about an 8th of an inch, so I couldn't disengage the safety. I did manage to shove the plunger back in the tube, and disengage the safety to clear the weapon. Now I will have to call Kimber, and see what they can do for me. Does anyone have any experience with Kimber's customer service? Or their repairs department? Any idea of time frame for getting it fixed or repaired and returned? Any input is appreciated from Kimber owners, or people with experience in the said matter. Unfortunately, this gun is not under warranty anymore, so hopefully it won't cost a lot to get fixed if I have to pay them, or go local to a gunsmith.