I get Rondo's outburst. The call was questionable, and Davis had called a few obvious ones against us already. He shouldn't have been T'd up, period...that was Davis reacting way too quickly. That being said, the only question is whether the bump was intentional or not. Even if you're livid (and rightfully so), you do not bump a ref. I've pointed out elsewhere that there is at least some reasonable doubt that it was intentional (he tripped [and it is not that uncommon for people to lead with their chest after losing their footing immediately afterwards], and Davis turned back towards him). That's really the issue here. Otherwise, there is no defense for bumping an official, no matter how poorly they have called a game. I think Rondo's bump was unintentional. If it wasn't, yeah, no excuse. Let's see what the league thinks. Also, if Rondo is suspended, I'd also like to see Davis get reprimanded for a few obvious missed calls. He probably won't, though, because Dictator Stern never punishes refs.