Driving "Mr. Know-it-All"

As an ambulance passes in front of us with the sirens blaring...

Owen: "Mommy, was dat noise?"
Jess: "That is a fire truck"
Owen: "No, mom, das na a fire truck"
Jess: "Oh, ok, what is it?"
Owen: "Dasa fire enjun, mom."
Jess: "Okay, that's a fire engine."

I think he takes after me a bit...mr. smarty pants. I didn't have the heart to tell him it was actually an ambulance...he probably would have argued with me anyways.