I would genuinely rather live under an overpass than have such a horrible job as having to work directly for that monster.

Also, it makes sense he would have such a fear of the bathroom; rats, snakes, specialized robots, and tentacles (in Futurama) can all make their way up into a toilet through the sewer system.

Edit: I just realized elon’s ketamine addled brain might genuinely worry that the sewer mutants from Futurama might pull him down there.