I feel like a total shit and am well prepared to be flamed, prob. deserve it :(
BIL is disabled - birth accident left him brain damaged, with learning/mental issues rather than physical ones. He is a nice guy (mid 30s now), who doesn't know he's disabled iyswim.
DH grew up knowing he would always need to look after his brother (MIL a single mum), and over the years we have hd 4am mercy dashes to police stations (when BIL feels threatened he lashes out and he'd been cornered by another service user at a drop-in centre), had to cope with BIL's 'friends' selling all his things and dealing drugs out of his flat and all sorts. Eventually BIL was persuaded to move back in with MIL (because she 'needed help' not because he needed someone to keep an eye), and he rubs along okay looking after the pets and doing garden work. MIL works away. They live five hours from us.
When DH and I got together I was late teens and while I did know on some level that one day BIL's care would fall to us I didn't fully appreciate what it would mean. BIL 'seems fine' and I was very young and MIL was far from old or frail.
We've been over for the festive season and MIL has raised the possibility of BIL coming to stay with us for a while as she needs a break. DH feels strongly we must do this, and I sort of agree, but I will be the one looking out for him all the time as DH works and I'm a SAHM. MIL is making out that it will be free babysitting for the DCs but given how BIL reacts to unpredictable things happening that's just not going to happen until the DCs are a lot lot older - he's fine playing XBOX with them and they love that, but DH vividly remembers BIL setting fire to the grillpan accidentally and then panicking and disabling the smoke alarm so he didn't get in trouble and running out of the house leaving DH and MIL asleep upstairs... so I just couldn't leave him in charge of young children.
DH's already had a massive go at me for letting BIL use his laptop (apparently it was 'obvious' that he'd be downloading porn and other dodgy things), and my mobile (he said he wanted to play angry birds and has run up £££ of charges to sex lines - MIL said I was stupid to give it to him but nobody has ever told me he has form for that before!)
MIL is dropping hints that we should bring BIL home with us when we go back - I really really don't want to, not without a lot more preparation and a lot more understanding of what it is going to involve.
I've asked about official respite (total no go apparently for lots of reasons, also MIL doesn't want someone to 'look after' BIL she wants him to do a 'normal thing like visiting his brother, he's always asking why you don't have him to stay').
DH thinks IABU - what do you think?