We call our deaf ferret by thumping our hands on the floor really fast. The drumming vibrates and attracts the ferret. If you give a treat each time he/she investigates the thump, you will eventually have taught him to come when "called". Hope this helps! Kim Wolf Mystyx Samoyeds, Ferrets and Rescue www.geocities.com/mystyx_samoyedsnferrets www.petfinder.org/shelters/OH48.html [Posted in FML issue 3524]