Have the stranger discipline the ferret walk him or her through it. the best place to go is pet stores allow the workers to hold her and have then discipline her if she bites, hold her while you let people pet her and it she makes any mnove to bite remove her discipline her and bring her back and allow them to pet her, afterward you must give lavish praises adn treats bring raisns with you. Show her then stranger need good things not bad things. thats what worked for my ferrets they are now 3 y/o and I can trust them with everyone Hope this helps, Mya Falkkor & Lukas [Posted in FML issue 4314]