The man who invented this mind-pummelling drink also invented the wisest remark ever made, which was this: Never drink more than two Pan Galactic Gargle Blasters unless you are a 30 ton mega elephant with bronchial pneumonia.
16 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 1 sitcom.
You can hear this line at 00:10:20.928 in the Blu-ray version of the TV Series.
Quote context
[...]
- Come on. We've gotta get some alcohol.
- But I'm hardly dressed to go to the pub.
- His name is Zaphod Beeblebrox and we shall learn more of his wisdom later.
- Six pints of bitter, and quickly, please. The world's about to end.
- Yes, sir. Nice weather for it.
- Going to the match this afternoon, sir?
- Foregone conclusion, then, eh? Arsenal without a chance?
- No, it's just the world's about to end.
- Oh, yes, sir, so you said. Lucky escape for Arsenal if it did!
- There you are, sir, six pints.
- What, from a fiver, sir? Thank you, sir!
- You've got 10 minutes left to spend it.
[...]