These sociopaths expect their 'word games' to result in some response but ultimately, they bring nothing. Still, their robotic behavior makes it so amusing to tease them. To borrow a phrase:
'Troll but a walking shadow, a poor player That struts and frets his hour upon the stage And then is heard no more: it is a tale Told by an idiot, full of sound and fury, Signifying nothing.' - Macbeth
So I enjoy teasing them.
Bob Wilson