[PayNoAttentionManBehindCurtain]

That's just not right.

Becky

[HairOfTheDog]

I think she ought to be able to recover at least half the vet bill, if not a larger percentage, and she should press for them to pay a share as part of the expense of owning dangerous dogs.

I would assign blame and responsibility to both parties here. Her dog was loose, but the pits were effectively also loose. I think the liability for keeping dangerous aggressive dogs contained is a lot higher than the liability for letting a cocker be loose... simply because of their propensity to cause damage.