That's a good point. Perhaps I should focus on unstable structures that require cleaning, rather than just the heavy lifting. [ The rocks can fall on him as much as they want. If worst happens, he can be repaired. And as he says it he hits one bigger fragment of a column still standing, to topple it over, and start the rubble-cleaning all again ]

As for ALASTAIR, don't count on it. We're probably going to be on a move for another mission rather sooner than later.