Since we're on the topic of MILs and turd families..
My MIL has gotten in touch with the ******* child of her ex-husband, who by every indication isn't actually the ex-husband's son and is more likely the son of the guy the ex-husband's mistress cheated on him with. Yes that's right, this kid is a ******* within a *******. Bastardception.
So it's likely this son is in no way related to the MIL - but she's reached out to him over Facebook, invited him to my house for Christmas, along with her terrible self and terrible husband.
And this son is weird. Reached out to my missus, saying he's her long-lost half brother, she figured he must be, not knowing of the deeper bastardry - when she learned of it she suggested a paternity test (surprisingly cheap), he refused but continued to try pushing the relationship. Wifey starts getting a little freaked out - mostly since this guy started messaging her upwards of fifty times a day - and that was five years ago, she hadn't spoken to him since.
Had I known this was coming I would've brewed something MUCH stronger than my usuals for the day. MIL is an alcoholic too, so I'll have to watch my kegs. Ergh.