...by entering:

*is when*

Just thought the number of hits was interesting.

Important Edit:I just learned something important about Googling. In the search above, I entered this exactly:

*is when*

...in an attempt to find every listing that included 'is when'--but what I didn't do was to put 'is when' in quotes. Therefore my hits were way off--I looked through the sites and found 'is' and 'when' often split up.

So, here's a correction. By entering:

*"is when"*

...you only get 1,990,000 hits.