I saw it once, ages ago, on (I think) HBO. As I recall, that was just about my first exposure to Crazy Cage and I think he acts like that the whole movie.
Crazy Cage is probably the only reason anyone even knows about that movie anymore--ditto for Vampire's Kiss, where he's also insane the entire movie. You know, A, B, C, D, E, F, G!! I'm a vampiya!!! I'm a vampiya!!! I'm a vampiya!!! I'm a vamipya!!!