DS6 was so funny today ...
He plays a video game designed for older teens/adults; there are 80 levels total, and he got to level 20 today. Very pleased with himself, he said, "Whew! I'm a quarter of the way done!"
Since he started it

I said, "Congratulations! What's another way to say that?"
"Umm ... I'm 2/8ths of the way there!"
I said, "That's right! Or ...?"
"Or 3/12ths! Or 100/400ths! Or 400/1600ths! Or ..." here he got a naughty little grin, "or 16/64ths!"
Cracked us up!
He likes to do stuff like that ... a couple months ago, he was talking about how much fun it would be to drive a car, and how he wished he could do it now. Dh said, "Well, you'll be old enough soon ..."
"Ugh, no," DS said. "I'm only, like, a third of the way there.

"