Heck, I'm in the military, and I hear stupid advice all the time.
"Watch that weapon, Sergeant. You'll have an ND and bring down the whole airplane."
"Load nothing but tracers in the bottom half of your mag."
NRA Life Member
Ladyfriend: "I need help with the leaves in the yard"
Me: "Controlled burn?"
LadyFriend: "I forgot my Boy Scout turned into an infantry officer."