Season 7, Episode 16: "The Shower Head"

Well, keep looking.

Oh, hi, Mr. Peterman.

Do you realize how short the Kalahari Bushmen are?

I'm gonna look like a giant to those guys.

I'm afraid I have some bad news, Elaine.

It appears you will not be accompanying me to Africa.

I'm afraid it's your urine, Elaine.

You've tested positive for opium.