related collies, whose biggest challenge were in  scenes swimming across Loch Ness on her way home. "They werent bred  to be water dogs, who have more webbing between their feet and more  fat on their body to insulate them for the water," said trainer  Carol Riggins (qv), who has steered the Lassie stable through  Lassies seven, eight and nine. "Collies dont have that. When you  put them in the water, as soon as they get wet to the skin you have  to take them out and you have to blow dry them before you can do the  rest of the scene. When they get in the water they get cold and  their muscles dont work as well."