The whole thing reminds me of some mob boss intimidating someone. He makes a "joke" about, oh, breaking their arms, sits there with a straight face for a few seconds. Then he starts laughing, and after a second the other guy laughs too, nervously. Yeah, that joke was hilarious.
It would be funny if he said HE wouldn't be paid... or HE would be fired...
Of course not. All it does is show a total lack of empathy.