A guy here walked into our LGS, asked to see a Ruger 357, opened the cylinder, stuffed one round in and offed himself.
I didn't know one human could contain that much blood.
WE had a guy do that at the local Coast to Coast store about 40 years ago. He did at least go outside to do it. He was running away while the clerk chased him. The clerk caught him when he was dead on the sidewalk about a block away.
kwg