Hi Barker, glad your issue has stopped! So far haven't had any more problems with my two but I am not confident it won't happen again. I think my situation does have similarities to yours. I have seen both my dogs try to correct each other's behaviour and that's when problems ensue.
Nekhbet, why do you say to consult with someone else? Any specific reason? Do you know of Messy Pawz and Sue from that company? I did call Judi today from ProK9 but she was with her mother at the time in the ER, poor woman. Said she'd get back to me but if something has happened in her family I am not expecting a call back.