Marilyn Manson sliced his face with a razor over Evan Rachel Wood?

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Don't try to break up with Marilyn Manson.

He just might slice his face with a razor blade and consider smashing your skull with a sledgehammer.

Manson talks to Spin magazine -- in an interminably long interview about everything -- about his recent traumatic breakup with an ex-girlfriend that we're betting is Evan Rachel Wood.

Although he never refers to her by name, we're thinking its gotta be her. December 2008? The timing is right.

Read it and tell us what you think.