I love this movie, but there is no good reason for it and it is a completely indefensible position. But I will not lie, I have seen it many times while very high and drunk and laughed my ass off.
It's not just surreal, there is always a slight feeling that you ALMOST get what he's aluding to even though apparently he's just doing complete nonsense. For instance, I hate Adam Sandler and Pauly Shore and co., but something about Tom Green is just so honestly insane that it charms me.
"Get inside the animals" has to be one of my favorite comedy scenes of all time. Almost like something straight out of one of my mushroom trips :D
--- G.