Dom Joly went bobsledding.
We got a brief safety talk – "You'll feel up to 5G on the turns, not unlike looping the loop in a jet fighter. You'll find it difficult to breathe. Keep your head down, hands tucked beside you and, if we tip over then there's nothing we can do, we have to slide to the end and hope..."
The first three turns were actually quite enjoyable – a bit like doing a roller coaster in a sardine can. The fourth turn, however, was extraordinary. We suddenly picked up huge amounts of speed and everything went a bit blurry.
You can do the same thing at Lake Placid.