My new brother in law just pretended to knee my 2 year old son in the face and my husband said "if you do that I will have to kill you" and then didn't speak to him for the rest of the visit (another 15 minutes). DH is furious and thinks he should have thrown the BIL out of the house. This came after my sister's 11 year old had been hitting my 2 year old over the head repeatedly with a foam sword. The BIL did not react to what DH said, but I have a feeling I will be getting a nasty email from my sister tomorrow.
Was my DH being reasonable, unreasonable or too reasonable?