>>5727843 (LB)
"Can I stop watching the area now?" Good thing you're not in the Navy, planefag.
There, the general rule is, "Thou shalt stare at thy scope with utmost attention at all times, even if thine scope is utterly empty, because thou never knowest when some lurking unknown might poppest up and ruin thy day."
I think it was in something like OPNAVINST 3120.32, in the second paragraph. Or maybe it was the preamble. I'm pretty sure it was written by God, or someone close to Him.