Good UK Protection for rMBP covering Water Damage.

So, soon I'll be purchasing the 15" Retina Macbook Pro, and even though I'll be buying Applecare with it, I still want the protection that if say, I spill a drink on it by a stupid accident in a Starbucks, I won't have essentially flushed over a grand down the toilet.

Has anyone covered their Macbook with any kind of extra protection or insurance? And if so, where's the best place to get it?

Thanks 🙂