Smallville (2001)

1 corrected entry in Crisis

Crisis - S3-E16

Corrected entry: At the end of the episode, Lionel Luther pulls the top of the gun back on his gun to chamber a bullet. But he accidentally has his finger squeezing the trigger, causing the gun to slide into place more quickly than intended. I'm not a gun expert, but I think if there was a bullet in the chamber at the time, it would have been fired.

Correction: The pistol Lex has is one that is usually called an "Automatic", but more correctly an "auto feed" or "semi-automatic." Unlike a revolver, in a semi-automatic pistol, the firing pin and the hammer are separate pieces. If someone has their finger holding the trigger down, while pulling back the slide to insert a round, the round, firing pin and hammer all move together, and there is no impact to set off the primer on the round. Sort of a safety feature. Not a very smart thing for Lex to do, because he would either have to pull the hammer back manually, or pull back the slide, eject the round, and insert a new one.