If he decides to leave home the trust fund will be ended and the estate will pass to the Wheatleys.
One wonders if Tinker will perish of natural causes...
Considering this old couple are infected with CATS (a senile disorder, that seems to affect some women earlier) themselves, probably he will.
Personally, though, I'd tempt him into my house with cream and salmon. Then, once he's moved home, I'd sell the house.
"I fight with love, and I laugh with rage, you gotta live light enough to see the humour and long enough to see some change" - Ani DiFranco, Pick Yer Nose
"Life 's not a song, life isn't bliss, life is just this: it's living." - Spike, Once More with Feeling