He's a handsome fellow!..I hope you filter out all the yellow snow first.
It's the rocks we have to watch out for. A little yellow snow never hurt a dog... you should see the things they eat(shudder).
Yup, its a Border Collie thing! Take it from someone who used to own 3! :)
try blowing bubbles sometime. I am guessing he will go nuts trying to "pop" all of them out of the air.