Bill was the coolest guy in school, and frank just wanted stay in his good graces. Dude ate popcorn on the bench and pissed in towels courtside. Frank never even gave him a scowl. I'm not sure if Frank was scared of him, as much as he'd just had a massive crush on him. I mean...who didn't? Fwiw, bill walker would have definitely beat the living eff out of Frank Martin if he ever tried that crap. Would've been great tv.