I'm sure you guys have all seen this by now, but it cracks me up. Reminds me of the classic days of Lou. I sure wouldn't mind seeing Grover do this once in a while; he doesn't seem like he has any fire.
I swear I've had to watch this 10 times already, and would like to figure out how to chart this to pinpoint the exact moment his brain cracks. I'm deciding between the head first slide or him playing catcher and then calling OUT, Frank Drebin from Naked Gun style.