Yeah, he did. He got Phil Hartman's wife back on cocaine. Then she went batshit and killed him and herself. Later (a few years I believe) he went to some party drunk and some altercation happened between him, John Lovitz, and a few of Hartman's close friends. He was reported to have gone "I put the Phil Hartman curse on you!"

He's a fucking douche. He also supports PeTA, so that makes me dislike him further.