Had a coworker who refused her new office because it had a circuit breaker panel in the wall. Her husband told her it caused cancer. I explained that any EM coming around that steel door was barely detectable and wasn't ionizing radiation. Pointed to a sunbeam on the floor, "That's cancer causing radiation."
I know that sounds like I got all snotty about it, but I have social skills, explained it gently without condensation.
"Shalafi, you just think you know everything! Anyway, I believe my husband." Whose expertise in laying sheetrock belies his physics knowledge.
Best part? She posted a pic of her and her husband working up a tan on their boat that weekend.
Some men, you just can't reach...