Anecdotes that make you go ????

So I'm talking to a friend on the phone this morning, checking out the new design of his website.  There's a one-panel cartoon:

 

Me: I like the picture. "Hey."  Who's the guy with the beard? Galileo?
Him: No.  It's DaVinci.
Me: Oh, right! If it was Galileo, he'd have to have a hat.

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