WHY ISN'T THIS PICTURE FUNNY?

Let me rephrase that. It is funny...Milt Gross did it and he's incapable of drawing anything that's not funny...let me ask instead, "How could this picture have been even more funny?" 

The answer? It could have been more funny with the addition of witnesses, as Gross originally drew it. Everything is made more funny when your goof is seen by somebody else. That way your injury is compounded by humiliation.

Interesting, eh?