To make sure you are handing out the laxatone or petromalt or the hairball remedy of your choice! This weekend I got two calls from people with ferrets with blockages. One was a total stranger, one was a very good friend. If your ferrets are in heavy shed mode, as most of mine are, you may want to dose as frequently as once a day during this time. I normally wouldn't pass out the laxatives in such high doses - but it does not take much hair accumulation to cause a blockage. Ann [Posted in FML issue 2277]