Jimmy, Carl and others in “Unfinished Business”

Carl, Sheen, to the lake! [cut to Carl screaming as they're at the lake] You gonna keep doing that?

Carl

I'm sorry, Jim. I just have some bad associations with this lake.

Sheen

Everyone has something they're afraid of Carl. For me, it's the crawl space under grandma's house. For you, it's a stupid lake!

What happened here, Carl?

Carl

Well, two years ago, I came here with my pet turtle, Snappy. [Flashback to two years ago; voice-over] He was my best friend, but I was allergic to him. [his cheeks swell up due to his allergic reaction] So I had to release him right here on this beach. And ever since, the lake has filled me with feelings of nausea, blind terror, and then more nausea.