No, I think that snapping is much more than losing one’s temper.

Some people are just plain warped to begin with, like James Von Brunn at the Holocaust museum. I think he was so close to the edge for such a long time that it wasn’t so much a snap as a short step over the line.

Someone who loses their temper might swear a blue streak or start a fight, but not lose all touch with reality. Someone who’s snapped has definitely “gone ’round the bend.”

My final argument is a mute in the never-ending debate on the human “soul” and the twist we sometimes feel, “living in an modern society we must live by everybody laws.”
Cheers
Zamenhof