You tell them that, see what they say. They'll chase you up a tree and set fire to it.
3 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 6 sitcom.
You can hear this line at 00:29:49.320 in the Blu-ray version of the TV Series.
Quote context
[...]
- Can you imagine what a world would be like descended from those cretins over there?
- Imagine? We don't have to. We've seen it.
- We've seen it, there's no escape.
- But, did you tell them what we discovered?
- Slartibartfast's signature on the glacier.
- What's the point? What will it mean to them?
- Mean? It means that this is the Earth. My home. It's where I was born.
- Was?
- You tell them that, see what they say. They'll chase you up a tree and set fire to it.
- Listen, Arthur, face it. Those zeebs over there are your ancestors, not the cavemen.
- Put the Scrabble board away, it's not going to save the human race, 'cause this isn't it.
- The human race is currently standing around a bath over there making documentaries about themselves.
- But surely we can do something?
- No, nothing, it's all been done. We've seen it.
[...]