Broke in my new pistol today -- shot a few hundred rounds. Had a scary moment, though. The very first round I fired through the gun went down range just fine, but the trigger wouldn't pull on the second. I confirmed that there was a round in the chamber, but the trigger was frozen, the safety was frozen (on "Pew") and the slide was frozen. I ran a tap-rack-bang that amounted to a tap hard enough to tear the skin of my hand, but no rack. I removed the magazine, but was faced with a loaded pistol that couldn't be made safe, and that couldn't be cleared. I finally ran out of clever ideas, and resorted to my old military training -- in this case "If it don't fit, force it". I tried to force the slide back ... and finally succeeded, after applying way more goomph than should have been necessary. The ejected round appeared undamaged, the extractor was fine, nothing was bent, reamed, or wasted. So I reloaded my mags and proceeded to shoot her 'til she was hot. Everything functioned normally after that one hiccup, and the pistol performed flawlessly.
It was a great day!