I've never had that. I'd just defer to the "yea, uh huh, yea, uh huh" bit. I am tickled every time I talk to some self professed master mechanic. I used to get pissed, but now I feed the fire and chuckle about it later. I had a kid tell me that he was afraid to pull any mote than a car hauler with his 03 Cummins. Anything more would tear up the trans.
He'd have a stroke seeing what I consider a decent load.