True story:
Many years ago me and my tall assistant were installing video monitoring equipment in a mental rehab. facility. A MH client approached my assistant asking him how tall he was. My assistant replied "I'm six feet, eleven inches." The MH patient responded with "wow, I bet you have to duck your head when you go through doorways or you'd end up with a
conclusion."
It took a great amount of self-control for us both not to burst out laughing. Afterall, this facility had some very serial-killer looking clients!!