There's a reason mother-in-law is an anagram for woman hitler

I would of screamed at mine if she did that.

Some bitches gotta die

Lost my dog a year ago and still get really sad when I run across an old picture or something unexpectedly

what would she do if a loved family member died, celebrate?

I would sit down with your son and tell him a) That it is perfectly okay to cry, it's not unmanly and he doesn't need to be ashamed of it. And, b) If you do decide to still allow him contact with your MIL, to tell you if she ever does something like that again. I your MIL thinks that kind of behaviour is acceptable, there's no reason why she wouldn't do it again. I personally wouldn't let him near her until she apologizes (sincerely), but that's just me.

The fact you didn't smack her back means you took the high road, honestly I don't know how I'd react if my MIL did that to my son. You need to have a serious talk with her, and your son. This whole boys have no feelings, suck it up cultural attitude just needs to end. All humans have emotions, and dealing with them instead of pushing them down is healthy. Hitting on the other hand... even my 3 year old knows that isn't OK.

Mother in law needs to be banned from contact with your child until she understands and makes a sincere apology for her actions.

She's way too ruff

That bitch. How could she do that to a little kid? :(