I like your tagline, but you forgot horsepower.
Obviously, you've never tried to drive a 2WD truck up a steep hill on bald tires in the middle of winter... There IS such a thing as too much horsepower!!! ;-P
That's not too much horsepower, that's a baldness problem.
I was thinking balls could get added to that list, but then some guys have more balls than brains, and that's not good.
Reminds me of a time I towed my friend's ski boat with my 2WD truck. His 4WD was in the shop. All was good going down his steep driveway, which wasn't paved. It was just covered with crushed rock. Had to let all the air out of the tires and put bags of concrete in the bed to get up the driveway. It wasn't pretty, resembled a tractor pull. He wasn't too happy about all the rocks bouncing off his gel coat.