A Tad Excessive?
That said there are the occasional outbursts. Like the one that just happened at Table #17. We're not sure what happened during the hand, but suddenly one player said, "Yes! WHOOOOOO!!!!! ROCKETMAN!!!"
As the losing player stood up and walked away in disgust no less a personage than T.J. Cloutier turned around from his seat at Table #16 and said, "You know that there are rules about excessive celebration, right?" But it appears that shouting "WHOOOO, ROCKETMAN!!!" falls just short of "excessive", as no penalty was given.