First poster says something.
Next poster turns that into famous last words by killing the previous poster, then says something.
Repeat
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E.G.
Poster 1 wrote:Hey, this apple tastes funny!
---Poster 2 wrote:Died from eating Snow White's apple.
What's that thing up in the sky?
Ironic, funny deaths appreciated.
I'll start:
Now, where did I put my car keys?