Never witnessed any disrespectful shit like that however when my grandma was alive she used to ether my mom allllll Thanksgiving or Christmas day.
Mom: Let's get something straight, [insert brother's name], you're not old enough to have a girlfriend in the first place
Grandma: Remember when you were dating that hairy white guy? What's the name of that hairy thing from Star Wars...
Brother: Chewbacca
Grandma: Yea. So don't be telling him he's not old enough to date when you were dating Chewbacca when you was old enough to know better

you can't laugh at that shit tho, at least not in your mom's view. Grandma going home at the end of the night, she can't save you.
