Somebody suggested using mothballs to repell ferrets ( & borax too I think). But I think borax could be poisonous for ferrets: I recall a recipe to poison coachroaches which called for sugar & borax. Museums stopped using mothballs because this is toxic: they give off harmful vapours that can affect humans as well. PS This was discussed several days ago: my apologies if it was already answered in the meantime. Lorraine Tremblay & the little bundle of troubles (Pepe La Pew), the three musketeers (Presto, Boum Boum & Snoreau) & the terrible twos (Sanka & Mukluk) [Moderator's note: Probably thinking of boric acid. BIG] [Posted in FML issue 1558]