He downed a few bottles of tequila more than the rest of us obvi.
Not even close for me.
Anyway, the WORM is the Lone Wanderer. That's who he's talking about. Some of his quotes are pure psychoticness.
The reason he's like that is clearly because he was brought up badly and got a VERY serious mental issue. Unfortunately, no mental doctors in the wasteland, so yeah.. I'm surprised there aren't more of him, if it were real you'd see 'em everywhere.