Personally, we prefer consistent times out for training. In 25 years + with ferrets we've found that approach most effective with the best long-term results. Some scents worsen biting, and some deodorizers are hard on lungs and not just on ferret lungs... See Archives. Do have the vet check the teeth when you get the next regular kit vet check-up, and check them yourself as well. This is an old and well established site which should help you: http://www.geocities.com/SoHo/Lofts/1083/probintro.html Re: yogurt Our local A&P recently began carrying Greek yogurt with fruit or honey (a mix-it-yourself). It has live cultures and we have only had one ferret who had problems with yogurt with live cultures and the small serving in volume packs 180 calories. It is DENSE -- kind of between yogurt and cheesecake. The ferrets like it and did well on it, even one who can not stomach heavy cream or any other cream, so we are remembering it among other things used for sick times when calories are needed. -- Sukie (not a vet, and not speaking for any of the below in my private posts) Recommended health resources to help ferrets and the people who love them: Ferret Health List http://www.smartgroups.com/groups/ferrethealth FHL Archives http://ferrethealth.org/archive/ AFIP Ferret Pathology http://www.afip.org/ferrets/index.html Miamiferrets http://www.miamiferret.org/fhc/ International Ferret Congress Critical References http://www.ferretcongress.org [Posted in FML 5405]