Yes, this is a "baby behavior" that will go away as he grows up with the
proper encouragment.  A loud, sudden, angry sound from you as he lunges at
your face (or as soon as possible) will help him to understand that it's
not acceptable play behavior, then quickly scruff, scold, and immediately
put him down and ignore him for a few minutes.  Time outs in a cage don't
generally help much for this behavior.  If they have opportunity to play
with you again in two or three minutes, and the same scenario occurs
again, the lesson is reinforced more immediately.
 
Bare feet biting is actually (usually) also a baby behavior that can be
cured (untrained) a similar way.  First response to toe nippers should be
to ignore them (don't dance, don't dodge, don't pick them up.  No, it's
not easy, but it works quicker than any other method.) They're doing it
to get your attention and to get you to play.  You want to teach them that
it doesn't accomplish what they want.  Second response is to scold them
ANGRILY without picking them up.  Third response is to touch their nose
while ANGRILY scolding them WITHOUT picking them up.  Picking up a toe
nipper to scruff and scold is the last resort.
 
Debi Christy
Ferrets First Foster Home
 
Practical & easy training, care, & maintenance articles available at
http://www.geocities.com/ferretsfirst/
[Posted in FML issue 3814]