In response to the improving-quality spam I've been getting in the comments.
Artificial Intelligence Designer: We still haven't got it quite right. You robots are so close to imitating humans, but something elusive is missing.
Robot: I challenge that. We're indistinguishable from humans now.
AID: Not in humor.
Robot: Ridiculous. I write screenplays and comedy routines.
AID: But it's all broad, obvious humor: slapstick, puns - simple stuff. There's nothing new or subtle.
Robot: So, two guys walk into a bar.
Robot: I forget the rest.