Where is "U"?

Being the teacher that I am, I was playing letter games with Drew the other day. He seems to be a "numbers kind of guy" so we're trying to expose him to more letters. He's not too fond of them though, so I have to really make it into a game.
Well, the other day we were playing with his letter blocks which have little figures inside of them that represent their letter.
I asked him where "A for Airplane" is. He did well. He knows A is always at the beginning so he found it quickly.
So I decided to make it a bit more challenging for him, so I asked him, "Drew, where is U?" He ran around behind me with a sneaky little smile and sat down right behind my back. Then he pokes his head around and says, "I'm right here, Mama!"
It took me a second, but then I realized what he thought I was asking him and I laughed so hard and he just laughed and laughed with me.
What a funny little boy I have!