Teacher: “Let me put it to you differently. If I gave you
two apples, and another two apples and another two,
how many would you have?” Johnny: “Six.” Teacher: “Good.
Now if I gave you two cats, and another two cats and another two,
how many would you have?” Johnny: “Seven!” Teacher:
“Johnny, where in the heck do you get seven from?!”
Johnny: “Because I’ve already got a freaking cat!”