I don't think that a ferret would go after a baby's toes but a 6 week old puppy would definitely be a target.
I disagree. My roomates ferrets were always biting mine. Finally they had to go.
And how did you come to that conclusion? Ferrets are predators that go for small rodents. That poor girls toes might have appeared as such.
When I was in grad school my roommate had a ferret. If I didn't close my bedroom door, WITHOUT FAIL, I'd have a ferret chewing on my toes at 3:00am.
Six-week old puppies still have their milk teeth. How could a puppy just barely away from its mommy bite a toe off?