Rob is a nice guy, but he's about as sharp as a sack of wet mice. And he's old. How old? He's been playing D&D since version 1 was new. That's pretty old.
He's also played a bunch of other games, like Traveller (again, when it was new), Hero System (they called it Champions back then), and some obscure junk like Boot Hill, Gamma World, and Star Frontiers. And a whole lot more.
His friends would buy games, then give him the rulebook so he could learn and teach the game. And he actually liked it. Go figure.
Oh, and he's about as subtle as a hand grenade in a barrel full of oatmeal. So, you've been warned.