Season 4, Episode 21: "The Smelly Car"

-What do you mean, I stink? -You stink.

-Why don't you take a shower. -I showered.

Oh, wait a second.

Since I showered, I've been in the car.

-So? -Don't you see what's happening?

It's attached itself to me. It's alive.

If it's attached itself to you....

That's why Carl said he had to get up early, because I stink.