So you never get any warning, and you may be on deck and not know it, and so miss your chance.

If you put one of those Lamarr sensors on a hatch, and someone just opens the hatch, you don't get any warning.

Had to tell the old boy to go ahead-radioplant still Frank's-enemycouldn't get any warning from that Mexican fellow-had to tell him, had to.

'Yes, but how will you get any warning, here on the night side of the planet?'