I think it's symptomatic of the pop culture of the past few generations. I saw an article in TBM bemoaning the exact same thing but I really am not suprised they act that way. Watch any major sporting event and the very same thing happens after every score. Fist pounding, hot dogging, chest beating, dancing, belly bumping,and all other antics goes on. I'm sometimes guilty myself and I'm just a spectator. I don't begrudge them a little exuberance, I just get tired of the more "trendy" methods of doing it:ie.Baseball's fist punching (tapping fists together) and trendy slogans(tm). These smack of fanboy-ism or a marketing attempt. (or maybe an ego stroke to see how many people pick up their trademark slogan?) But even older school guys can be guilty of this. (RR and his "Jimminy Christmas", I love his older shows but is he really that hyper?)