Seff is terrified to look him in the eye! 
Its not that he's "terrified" of Douche Martin. He just doesn't recognize him. He doesn't hang around the scrubs and bottom-feeders.
True. Massa Self prefers to associate with dead beat daddies, dead baby daddies, dorm window sharp shooters, elevator wiener rubbers, gang brawl instigators, guys that break their own thumb "punching" people, wal mart thieves, dude's that have to cheat to pass high school algebra, leg stabees, girlfriend abusers, etc. Not much time to hang out with quality individuals like Frank and Co. Point plankin'.