Little Johnny is being questioned by the teacher during a math lesson.
“If you had ten dollars,” asks the teacher,
“and I asked you for a loan of eight dollars, how much would you have left?”
“Ten,” answers Little Johnny.
“Ten?” the teacher asks. “How do you get ten?”
Johnny replies,
“That’s because you may ask for a loan of eight dollars, but that doesn’t mean you’re going to get it!”