That's what the money tree is for! And a Knowledge sim with loads of time on his hands should be able to make enough that way to survive! Or make Creativity his goal!
(What on earth did you do to get up his nose like this? Kick him somewhere where the sun don't shine?)
If he's in a bunker as the rumor says, then "where the sun don't shine" could be anywhere!
Ah, but he goes out rabbit-hunting and deer-stalking! Now, when someone is deer-stalking they spend a lot of time crouched down in the undergrowth.......