Related:

• It's classified. I could tell you, but then I'd have to kill you. -- Top Gu
• MS Support Rep: I could tell you, but then I'd have to bill you.
• I spent hours coming up with this tagline. Could you tell?
• How many seconds are there in a year? If I tell you there are 3.
  155 x 10^7, you won't even try to remember it. On the other hand, who could forget that, to within half a percent, pi seconds is a nanocentury....
• I built this cruise missile to stop those kids from playing ZZ Top.
• I bet a fun thing would be to go way back in time to where there was going to be an eclipse and tell the cave men, "If I have come to destroy you, may the sun be blotted out from the sky.
  Just then the eclipse would start, and they'd probably try to kill you or something, but then you could explain about the rotation of the moon and all, and everyone would get a good laugh....