Simon stays quiet, but edges a bit closer to the situation, though now he's holding his staff with both hands - whether this robot is friendly or not, he doesn't know, but it's better to be on guard.

Something that sounded pretty ugly came out, as well as actual words following that - though jumbled in with whatever else the thing was saying. 'Demise' and 'world' were enough to put him on edge, however, and his grip tightens on the staff.

And then the noise came. It was nasty and sudden enough to cause him to stumble and lean on his staff for support, while clamping over one ear with a hand. He's making a pretty loud noise himself, though more in the vein of 'oh god make that racket stop'.