Malcolm: We don't have any choice. We have to neutralize him.
Reese: Yeah, but how?
Malcolm: Okay. We let him "overhear" something we're planning. Something way across town. We make it so juicy and horrible sounding, he won't be able to resist telling Mom. So she waits in the cold for three or four hours and, when nothing happens, he's lost all his credibility.
Reese: Nice.