It had been a long day. The kids were restless and acting up. Mrs. Thompson, a high school teacher, was trying to give a lesson on the circulation of the blood.
But, none of the kids seemed to be following her. So, to make the matter clearer, she said, “Now, class, if I stood on my head, the blood would run into it, and I would turn red in the face.”
A couple of kids nodded.
“Then why is it that while I am standing upright in the ordinary position the blood doesn’t run into my feet?”
That was when one smart kid in the back row yelled,”Because your feet ain’t empty.”
Yes, It’s Another Classic Joke!