Remember the Belushi skit on Saturday Night Live about the guest who wouldn't leave. The hosts tried hints, cutting of the drinks, turning off the lights, and still the guy wouldn't get the hint.
Andy reminds me of the Belushi character, except Andy is worse. Belushi never promised to go and Andy did. Still, day after day he rants on. Why can't he just go away?
I've linked, but go at your own risk.