We think lars broke his head somewhere.
In fact, we have a list of why things turned out like they did. For instance, we have the reasons the Beatles and Dead Kennedys broke up. Here's one relevant bit from the list:
Why Lars Ulrich is a complete ass: Lars wrote the hit song "Hit Me Baby (One More Time)" however, the singer Brittanny Spears stole the song from him in the late nineties, before he could release it under his solo band "The Whomping Dongers". Spears subsequently made a fortune off the song that Lars had written (and if you look closely, sang in the "One" video by Metallica, so he isnt really a nut talking to his drums).
The last bit is a reference to our joke about how if you watch the "One" video you will find Lars moving his mouth to...god knows what, cause it ain't the lyrics of "One."
This and many other things are why we think Lars is absolutely hilarious. That and the weird close up faces in the st. anger video.
By the way, if you pause that video at JUST the right time, James looks like a disgruntled drunken Santa Claus.