She is coming tonight, that is what had me thinking about it.  Perhaps it will be self limiting.  If she brings the chi around, I will crate the bullmastiffs...this last time as it is a bit of a drive out here.  But the saint puppy(10 weeks old and already outveights the chi by 20lbs) will stay out for some supervised visitation.(I'd let the cards fall where they might but don't want to frighten a 10 week old puppy or let her think she can play excuberently with the chi).  So 'll supervise them both, with equal corrections to both dogs, also when she sees how frequently the saint is taken out to potty(she is a potty trainig genius and has only had 2 accidents, both my fault..in the 2 weeks we've had her) perhaps she'll see that dogs can be house trained.
I will have a talk with her about it too.  She honestly just does not see it as an issue, if sh did Idon't think she'd do it...but we'll see.