He's like one of those people who keep turning up for work, following a period of garden leave.
I mean, is he waiting for some type of cheque ? or, as I suspect, he's too senile to understand what's going on.

Either way, what if the bloke at parliaments door casually tells him to fark off and wheels him back outside, or takes him for a long drive into the bush. You have to wonder if they'd even send out a search party.