I believe I have, on a school week at Butlins in April 1981. I remember the springy target things. It was good fun.
When I watch the rollercoaster chase in The Girl Who Was Death, I always think of that week, because the chilly sky in the background is just like a memory I have of the sky while we were roller-skating there.
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' "Haven't got houses." Where do they live then?'