Eminem has always been known to completely overreact to every little comment about him then rap about it. He was mad at Christina Aguilera for something she said on MTV that wasn't even a diss, then he went on to diss her on The Real Slim Shady. Then he was mad at Whitey Ford or whatever his name is basically for not acting all happy and giddy when Em said what's up to him at some place where they stumbled upon each other. Then he was mad at Fred Durst, DJ Lethal and Limp Bizkit for not backing him up in the already retarded-ass "beef" that Em never did anything about. Then he disses Moby because he said he's not a fan. And then the Christopher Reeves, thing. He did diss Benzino, Ja Rule (but only alongside 50), Canibus, Lauryn Hill, and probably a few others who I can't remember, but Fatal dissed him and Em never said anything back. Yet he's so quick to diss practically harmless musicians from other genres who aren't even really doing anything to him.