I thought I saw him once, but ...

I thought I saw him once, but it turned out to be a yeti
 John Scalzi

Quotes from the same author

I grew up in southern California in the 80s. Yes, I am a walking cliche.
 John Scalzi
I'm not insane, sir. I have a finely calibrated sense of acceptable risk.
 John Scalzi
I am not responsible for actions of the imaginary version of me you have inside your head.
 John Scalzi