Today with it being nice weather, was an opportunity to bleed the radiators and let some of the trapped air out. There are 6 in the house. I went round one after the other with a bleed key, opening them up and closing the valve as the first bit of water dribbled out. Left the wiping up to the last, and as I approached the last radiator (in the bathroom) Iz was by it contentedly... licking up dripping radiator water. She has fresh water downstairs, a glass kept filled with fresh water in the computer room (adjacent to the bathroom). So she decides to drink radiator water. Naturally I got a filthy look when she was scooted away from the stuff. "Horrible human, I'm thirsteee!"