I would've definitely exclude a monster-in-law like this: If I had to deal with a guy's nasty mother and it got to the point of a physical fight right before my wedding (that's already crossing the limit) like that scene... she wouldn't be allowed in my wedding nor my house at all. I think once you get physical with someone, there isn't any negotiations anymore.
Would getting into a physical fight with a future in-law be a good reason to exclude them?
I would've definitely exclude a monster-in-law like this: If I had to deal with a guy's nasty mother and it got to the point of a physical fight right before my wedding (that's already crossing the limit) like that scene... she wouldn't be allowed in my wedding nor my house at all. I think once you get physical with someone, there isn't any negotiations anymore.