Bob just wants to help everyone with their problems and is never rude to anyone. He is also one of three characters to be truly on the good side and he lacks any corruptingm
He is very tolerable of others, as if he spots The Protagonist in the janitor's closet along with a bloody axe, Bob is only concerned about whether The Protagonist cut themselves rather then the fact they were trespassing and if he sees Nugget in the sewers where he isn't meant to be, Bob is only concerned with helping him