Oh Daaaaaavid.  Look over your shoulder, quick.  A woman of majestic height
with powers beyond your imagining -- a woman who lives on the water in a
nearby kingdom -- has put a hex on your new ferrets until such time as you
will offer her the little ferret girl she loves.
 
If you wish them to cease all that biting, the cure is simple.  Turn around
three times.  Pick up the phone.  Call Delta Dash.  Place Shiva in a
carrier.  Drive her to the airport.  Send her to the majestic yet terrible
woman on the water.  When Shiva has safely arrived and the powerful woman is
happily cuddling her and watching her play with her lonely ferret boy, then
and only then will your new ferrets cease to bite.
 
I have this on the best authority.
[Posted in FML issue 1824]