A rare explanation for the above drawing
Son: "Daddy, draw a leg."
Me: "What kind of leg?"
Son: "Just a leg."
Me: "A leg doing what?"
Son: "Doing nothing. Just a leg."
[Done.]
Me: "What kind of leg?"
Son: "Just a leg."
Me: "A leg doing what?"
Son: "Doing nothing. Just a leg."
[Done.]