Originally Posted by L'Incandescent
Maybe your mother in law is just operating at a different comedy level, like Andy Kaufman for example. Maybe the joke is on you for not recognizing the humor. (I have never joked with your mother in law, so I can't say for sure, though.)
I did mention that my family will look at each other with knowing nods telapathicly saying things like "was that a callback
?" and then nod at each other in appreciation.
I guess we appreciate her like the french with Jerry Lewis - only with less adoration.