Jeremy Clarkson and James May? Sounds like some sort of horrible nightmare.
Just remembered mine when reading The Pets Thread. I was in a library with my Dad and brother, we open a door and then we're in some sort of wilderness although there's still book shelves that show the perimeter and a door on the other side. There's a small lake that we have to cross (I don't know why, we just had to). To cross, there was a system of boats, altering in size. The first was tiny and could only fit one so I went first. I looked in the water and there was tonnes of snakes everywhere. I kept going but then the boat doesn't go any further and I see I have to get too the next boat. It was obviously wobbling all over the place so I was petrified of falling in, and when I eventually do the snakes start jumping out at me.
So I'm hitting them away with the paddle and it lasts for ages, they were just a continuous stream jumping out from all directions. When they stop, I kept going and there's a log going over the lake where people are standing. They tell me the snakes are ridiculously poisonous and jump in and start swimming. After the shock, I asked them why the snakes didn't attack them and they just said that's the way it's always been. In their wake was a melted cheese like substance, so I thought it was best to go on. While changing to the next boat I was attacked again and fell in and felt all the snakes swimming all around me and got the drowning feeling.
The people came, making a circle around us that the snakes couldn't get in and they pulled me to the other side of the lake. I was then covered in this gooey cheese stuff and went through the door, which lead to my local Waitrose where the shelves were full of dead snakes.
I've never even been afraid of snakes before. Dreams are fun though.