[Private] There is that, too. So, guessing that those 'provisions' you were mentioning include some sort of bagged blood delivery?
And I don't see why not, given that they aren't pertinent to anyone here. But I've investigated cases of alien abductions, so called super soldiers and even a serial killer that would nest, sustaining himself on human liver. He was able to shift and contort his body, able to fit through small openings.