My sister's in-laws
Are really, really rubbish at this.

It's the MIL from hell syndrome(she really is a MILF as well, Mom I'd Like to Flamethrower).

I think it boils down to "no-one being good enough for her baby boy", so she tries to make my sister's life hell. And fails because my sister doesn't fall for any of her crap (Go, younger Weasel!).

Example:

MIL "Well don't come round to ours for Christmas!"
Younger Weasel: "Ok, cool, thanks, that makes all the planning so much easier!" (smiles brightly, blinks innocently)

My sister has in the past survived car crashes, glandular fever, ME, the rest of the Weasel family, ovarian cysts, a few years without an immune system and basically doesn't put up with any garbage from anyone.

So MIL has moved on to my sister's child as a potential guilt trip source. She refuses to come round and visit the kid (despite being frequently invited) and instead sends birthday cards with messages saying "We're sorry that we're not allowed to see you, we'll always love you *sniff*"

Oh and my other sister has an ex-partner who told his children he had cancer (he didn't) to deflect attention from the fact that he had cheated on her while she was pregnant. He now lives in terror of my dad, who had to have it explained to him that it would be marginally more upsetting for my sister's kids to have their father brutally murdered, than to put up with the twat. It was a close call, we're all still wondering if he made the right decision...
(Wascally Weasel now with 100% fewer jokes., Wed 19 Oct 2005, 10:34, Reply)