At a family do 3 years ago my BIL (my sisters husband) who doesnt 'do' children lost his temper with my DS1 (who was 6 at the time) and picked him up by his throat and threw his across the room. Neither DH or myself witnessed this but found DS1 crying in a corner a few moments later with red marks around his throat By the time we managed to ascertain what had happened BIL had gone.
I telephoned my sister the next day to talk to her about it (I was on the phone for 1 1/2 hours to her) and basically she said that it was DS1's fault because he shouldnt have wound BIL up. WTF!!? I put my view across very plainly and ended up saying that we would have to agree to disagree as I didnt want to fall out with her about it.
We havent seen my BIL since. I have seen my sister. He doesnt normally come to any family do's because he doesnt like being around people.
Anyway, I seem to have landed with hosting Christmas afternoon with the family round my house. I assumed BIL would not come as per usual which is fine by us.
Sister has announced that yes, he will be coming.
DH says he is still waiting for his apology. This could be a very interesting Christmas afternoon.