This one is from BaisYaakovLiberal:
My teacher was talking about the power of habit. She told a story to illustrate her point. There was a rabbi (sorry, I don’t remember his name) who never put his hand below his waist.
When he passed away, people tried to straighten out his arms [for burial] but they remained straight.
Clueless girl: “Why did he keep his hands there?”
Teacher: “It’s an inyan of zehirus.”
Clueless girl: *Looks confused*
Me: *cracks up*