These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: What About Bob?
Alternate Character Interpretation: The story could easily be seen as Bob the Jerk Ass tormenting the stressed-out Dr. Marvin while everyone is too stupid to realize Bob is actually not as wonderful as they say he is. On the other hand, Dr. Marvin has legitimately pissed off a lot of people and screwed up his own family, and Bob is a pretty nice and well-meaning guy underneath his mental issues.
Throw It In: The scene with Bob entertaining the nursing staff at the mental institution was unscripted — Bill Murray was just having fun.
Unfortunate Implications: While Leo certainly is a Jerk Ass, Bob's actions, innocently intended or not, would generally be considered, at minimum, a gross violation of the patient-professional relationship, and probably criminal harassment, invasion of privacy, and/or stalking. This makes the rather sympathetic portrayal...problematic.
The Woobie: Bob. Honestly, he doesn't necessarily mean to drive other people crazy because of his craziness. And you have to wonder what happened to the poor guy to make him so unbalanced and phobic in the first place.
Jerkass Woobie: Dr. Marvin may be an obnoxious Jerk Ass, but one can't help but feel sorry for him considering everything he suffers at Bob's hands over the course of the story.