What test? How do you vvank off a ferret?
first of all you have to scruff the hob and drag him around whilst pinching the neck,then i find it helps to rub his balls to relax him.don't rush straight in but very gently hold his helmet between your thumb and fore finger and move back and forward,increasing the pace.don't stop and start otherwise he might get fustrated.after a few minutes his eye's will roll back and he'll leave a deposit in your palm.hope this helps.
Same as what I do to my dog that is :thumbsup: