When you know you are not dealing with a mopar person
It happens even with Mopar people. I bought a 69 A12 roadrunner body from a Oldsmobile guy who advertised it as a hemi car because it had hemi emblems on the hood. I went to look at it after some of my Mopar buddies looked at it and they said it wasn’t a hemi because it was coded as M instead of J. They were so concerned about the J that they missed the fact that it was a 6 barrel car. I bought it cheap because everyone who looked at it told the owner that it wasn’t a hemi car.