Banjos.
I think what the fan said matters. There is an interesting double standard. A fan can say whatever they want, but the guy that is being pushed to be the best, pushing his body to its physical limits, amped up on adrenalin and riding a strong emotion response to the situation is supposed to just meekly turn around, say "yes sir thank you sir, yes my mother is a ****" and walk away? I think that is unrealistic. Should he be punished for accosting a fan? He probably should, but it should be commensurate with the crime. If I shoot someone who enters my house and attacks my family that is far different than if I draw on someone in a grocery store and shoot them in the back of their head. I would get different punishments in each case, maybe none in the first case, and it should be the same for the athletes. The situation should matter.
That said I would not mind at all having someone with some passion. All we get is Favors furrowing his brow and Corbin straightening his $500 tie. Get someone out there who takes losing personally for once.