DS is an adult with autism and ADHD and various mental health issues going hand in hand with them.
He appears to now be suffering from a sort of psychosis, where he is unable to process basic information, recognise familiar items or respond appropriately to simple questions (he will scream and then if you say "are you in pain?" he says "my name is (DS.)") He also smears faeces and urinates around the house.
But other times he is lucid - still eccentric but seems perfectly 'normal.'
He has now lost his driving licence on medical grounds and so he can't work.
So what is he supposed to do - he won't claim benefits, he is a danger to himself, yet no one will intervene?