Season 8, Episode 18: "The Nap"

- I got pool problems, Jerry. - What happened?

Well, I had been swimming for three hours...

...and I was in a real groove, so I decided to keep going.

But at 10, they start the aquacise.

Thirty-five geriatrics throwing elbows.

It was like I was swimming through a flabby-armed spanking machine.

- Well, how long did that last? - Half-hour. Then diving class started.

Well, that got a little messy.