Our cat is very fond of sitting on my desk while I tye. He's never tried to play with any tools or eat any materials though so I've never tried to get rid of him while tying. As his fur makes a great mottled gray nymph dubbing he tends to vacate the desk whenever he sees me coming at him with a pair of scissors and what my wife describes as "that look" in my eyes.
On the other hand, we've got a black Labrador Retriever that is just the right height to steal materials off of my desk when he's sitting down. He's particularly fond of calf tails and elk and moose hair and has actually become quite stealthy at stealing these whenever he can while my attention is diverted with the actual tying of the fly.
Perhaps a Labrador Retreiver Streamer is in order for my next dozen flies...
-Darryl
------------------
"If we carry purism to it's logical conclusion, to do it right you'd have to live naked in a cave, hit your trout on the head with rocks, and eat them raw. But, so as not to violate another essential element of the fly-fishing tradition, the rocks would have to be quarried in England and cost $300 each."
~John Gierach
My one wish is that when I die my wife doesn't sell my fishing stuff for what I told her I paid for it...