At Least 10 Times

Now I know where The Big Bang Theory got its idea for flipping the switch at least ten times... from Apple.

Part of the relevant dialogue via the-big-bang-theory.com:

Howard: Step one, rapidly flip the calibration switch from the fully up to the fully down positions for at least ten times. 

Sheldon: It actually says "at least"? 

Howard: Yeah. 

Sheldon: Why would they say "at least"? Is it 10 toggles? Is it 100 toggles? Is it 1,000 toggles? 10,000 toggles? 100,000 toggles? 

Howard: Sheldon! 

Sheldon: You see where I'm going with this.