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
Big Sister: "Everyone in America is fine with the .30-30, except Mack. He has to shoot that .35 because that extra point zero fives inches will matter on Bigfoot."