My brother has always been difficult. As a child, I loathed and detested him for his greedy sneakiness, bullying, arrogance and a complete lack of kindness or consideration.
Many decades on, following the death of our second parent, he (retired now) took part in the sharing out of family possessions. We siblings got together and took it in turns to choose family items by rotation. It was all perfectly fair.
But on two or possibly three occasions since the sharing out, he has broken into my house and made off with family stuff which he thinks rightfully should be his! He was challenged by my neighbours once - he always makes these thieving forays when he knows I'm away. He convinced my neighbours that he was who he said he was and that he had the right to get into my house. He doesn't have a key, but is clever at making and mending and so, effectively, picked the lock assisted by a skeleton key, I suppose.
I've since had to fork out nearly £100 for the services of a locksmith to make my front door brother-proof. I am very, very angry and upset and the most recent thieving episode has brought all my negative childhood feelings about him flooding back. Over recent years I'd tried to get our relationship on a better footing, and I'd thought things had improved (though we'd never be close) - and now this.
It only dawned on me a couple of years ago that his brain doesn't seem to be wired like other people's - and Aspergers might be the reason why.
He's had a couple of brushes with the police because of not recognising normal boundaries.
As I say in the heading - might a diagnosis be helpful (to him as well as to various people he takes against?)
If so, - how can he be encouraged to get one?