I pit my woo woo ultracon co-worker

Dissing Bill’s wife? You just put a big ol’ target on your back . . .

Four word to repeat, as often as needed, every time he opens his mouth.

Shut. The. Fuck. Up.

Seriously. Every goddamned time he starts running his mouth, tell him to shut the fuck up, then either leave the area or turn your back and ignore him.

More fun: leave out the “Bwahahaha” part and deliver your lines in a dead-serious voice. Be a little hushed, and occasionally, look around furtively.

Look up any thread started by jetblast.

People have no subtlety nowadays. If I were in the OP’s situation, I would be deliberately obtuse. Agree with everything he says, and expand it to conclude the exact opposite of his point. Eventually he’ll get too frustrated to talk to you.

He’s the perfect Orwellian doubleplusgood duckspeaker!

Were I the sig kinda gal this, methinks, would be it.