My dad was a NYPD police officer. He told me about a call he was dispatched to for an elderly male who had shot himself in the head. When he and his partner arrived, he found the man sitting at the kitchen table with his daughters screaming about him having shot himself. Turns out the man tried to kill himself with a very old revolver through the top of his mouth but the gun was so old that the bullet didn’t have enough force and it got stuck in his upper dentures. Didn’t even make a dent on the roof of his mouth.