The Young Ones1982

[Two dishevelled, unshaved men are lying on a raft in the middle of the ocean]

Man #1:
What was that?

Man #2:
What?

Man #1:
...Nothing. My mind's beginning to play tricks on me. I thought we were lying on a raft just now.

Man #2:
You should take it easy, you know. You must be working too hard. [They're actually lying on a mattress in a dingy cellar lit by a bare bulb] Bloody hot, isn't it?

Man #1:
It is.

Man #2:
I should get a lower wattage bulb.

Man #1:
Help! We're sinking! We're sinking!

Man #2:
Relax. We're not sinking, we're not sinking. I'll get some fresh air in here. [He opens the door, revealing endless ocean, and breathes deeply] Ah, that's better. [He closes the door, then pauses] Uh...

Man #1:
What's the matter?

Man #2:
Nothing! Nothing. Can you swim at all?

Man #1:
What?

Man #2:
I was just wondering.

Man #1:
Wondering?

Man #2:
Yes, I was wondering if you might swim to the chemist and get me something for my hallucinations.

Man #1:
Have you had one too?

Man #2:
Either that, or the whole town is flooded.

Man #1:
You're right. We've been working too hard. I haven't had a holiday for over a year now.

Man #2:
What about this?

Man #1:
What? This? A holiday? Two weeks in a cellar under a light bulb?

Man #2:
It was all I could get.