Yes it's irrelevant to "acting professionally". However, how many professionals are "acting professionally" 100% of the time on their job? They never pick their nose, never give someone the finger, never say a swear word, never anything unprofessional? I'd say damn low
I recall the vice president of the united states telling a senator to go fuck himself on the senate floor... hehehe.
So I would say that if they want to claim that any bus driver in their district being reported by any citizen as having given the finger will be fired, then I can accept it.
However I'd bet you a quarter that no bus driver in their district since time began was ever fired for the same thing prior to this incident.
