I had a hair-raising experience with one of those mesh carry cases. I am driving down a California freeway at 3 AM and my Rocky ate through the mesh in less than 10 minutes. He than ran under my seat. I am swerving trying not to let him get under the gas, clutch or brake pedals. When I tried to pick him up, I got heavily 'nipped.' I had to pull over-off the freeway to avoid Highway Patrol. I had to drive the next 15 miles with the world's maddest (nonstop nipping) and squirmiest ferret on the West Coast. I do not recommend any mesh carrier for hyper ferrets. However, 99.9 per cent of ferrets seem to do quite well with these carriers. I have the Petco cartoon ready now for anyone who would like to receive it. Just put Petco in subject line. Deva [Posted in FML issue 3821]