Next week the 18mo is off to spend a few days with BIL and SIL. She knows them, but hasn't stayed over at theirs before (has stayed several days at my parents). B&SIL have spent time with DD at ours but aren't aware of her 'routine', and she is quite a routine-y toddler - big meltdowns if she's tired, hungry etc., the usual stuff.
Don't see or talk to B&SIL much (not because I don't like them or anything, they're lovely just one of those things that we only see each other when DD is involved) and will be at work when they collect DD so won't have an opportunity to talk to them beforehand. How weird, or pfb, would it be to send an email explaining roughly what DD likes - when she has bottles, what times she likes to nap etc, best way to make sure she goes to sleep at night and stays asleep? I don't really care if they feed her McDonalds and Wispas every day, but I know she'll have a terrible night if she doesn't have a bedtime bottle. Or would it be weirder to send her to a couple who don't have kids yet without any explanation of how to manage the ins and outs of a toddler's day?
Honestly can't decide which choice is odder. MN jury please.