My inlaws are awful.
When telling them I was pg with DS1 my MIL asked if, "people like you are even allowed to have children?". I'm disabled. Apparently disabled people shouldn't have children.
The day of bringing DS1 home she phoned DH and asked him if DS was his as he couldn't be as DH has red hair and DS has brown - then suggested to DH that I had been sleeping with my ex.
When we found out at a scan that our DS2 had died (stillborn at 36 weeks) DH phoned his parents for his dad to say, " We can't help you son, sorry, bye," and then hung up on him.
Fil agreed to go with DH to help him buy suit for our DS2's funeral but when DH turned up they were out/hiding.
We asked them if they wanted to write a note or put a photo in DS2's coffin. DH was to pick up item when he visited to go suit shopping but obviously didn't get it then - MIL tries to hand letter to us as soon as we got out the car at graveside (DH holding coffin) and expected us to whip out a screwdriver and open coffin right there to put the note in.
Didn't even remember what DS2 was called and put wrong name on flowers.
Didn't contact us for weeks after funeral and when DH took our DS1 to visit he wasn't even sat down yet before his dad laid into him about us not phoning or visiting them often enough.
There's loads of other little things but you get the gist of their fuckwittery I hope.
Been a couple of years since we've seen them now.