I am an ELL Teacher. I love being an ELL teacher, and here is just one reason why:
While discussing how to change a noun from singular to plural (most commonly by adding -s, by the way) I looked at my class and asked, "Now, how can I go from one dog to more than one dog?"
"Go buy the other dog." And he totally meant it.
I couldn't help but giggle and smile.
On another note: go read this post for a real gafaw!