Didn't realize weight lifters were so territorial.....
I had the opportunity to work out with a former Mr. Olympia (Ronnie Coleman) many years ago (purely by chance) and he was the nicest dude. I was totally not into body building or anything, but that guy was super helpful and anything but intimidating or douchey. Great teacher and very patient. Even when he had to pull more than half the weights off the bar when it was my turn to do some reps.