I weigh all my ferrets every month with a little food scale. The scale has a plastic bowl which holds even my bigger boys. I drizzle Ferretone in the bowl, and read the weight QUICKLY before the ferret gets too wiggly. It may seem a bit "anal", but I keep their monthly weights on a chart which hangs in the Ferret Room. I find it interesting to follow their seasonal fluctuations, which don't always correspond with the calendar. PamV in Cincinnati and 24 weight-watchers [Posted in FML issue 3954]