Just need to vent a little:
So, our wedding is 12 days away and last night my FI gets a random text from his BM simply stating "I am bringing my stepson to your wedding". We aren't having a declared adult only reception, but only 5 children (+ 3 newborns) are coming- and they are all family members. Because they are family members, we obviously know them well (I can't wait to dance with my 6 year old niece- she's a rockstar- lol) and know their parents will keep an eye on them, etc. The BM got married last year (we found out after the fact- his own mother found out after her sister read it in the paper- it's a wild story) and his wife has a 4 year old. We have only met her once and don't even know the child's name... in short, we don't know how he is behaved, etc. Plus, only their names were on the invite, so it clearly wasn't a "family" invitation. For the BM to declare he is bringing the child with less than 2 weeks to go... let's just say I'm not too happy with him at the moment. Even though my fiance already told him we've submitted numbers, the child can't sit at the head table (we are doing a Tuscan style head table so all guests of the bridal party can sit with their significant other), we don't want children at the rehearsal dinner (I mean, there's going to be plenty of adult beverages- if I was a Mom, I wouldn't want my 4 year old there either), etc.
They live 2 hours away and my instincts are telling me that they may just try to pull a fast one and show up to rehearsal with the child, expecting us to not be able to say no them. I was feeling pretty calm and put together until this was thrown at me. Now I'm just feeling completely anxious and unnecessarily stressed. My FI is torn because this is his best friend of 30 years and he doesn't know what to do with him anymore. I shouldn't have to come up with words to say (especially since it's all hypothetical at this point), but if they do arrive with child in tow the day before the wedding, any words of wisdom/advice as to what we should do if the worst case scenario happens?