Wakko tests that theory by blurting out, "Hey, everybody! Wanna hear me play Yankee Doodle with my armpits?"
"Ahhhhhhhh, almost anything." says Yakko right after he and Dot make those surprised faces.
Ha ha, classic Warners. Now that was a funny episode right there.
I love to draw Yakko! He's just so cool, you know? I can just imagine him saying something clever like: "It's never too late to do something great with your life. Unless you're Da Vinci, then you're history". (He never really said that, I made it up just now!) Same method as above. Compare this with the original sketch in the upper-right corner.