Has anyone ever used Frontline Flea & Tick spray on their ferrets? I thought someone on the FML said that they have, but on the Frontline web site, it said not to use it on any animal besides cats and dogs. I don't want to do anything to hurt my ferret, but if I already have to buy Frontline for my cats and dogs, I would like to use it on Cleo, too. I would appreciate any advice you can offer. [Posted in FML issue 3940]