Replies on Groomers as Cops

Yay, Lori! How funny you're doing such a service to your clients and they don't even appreciate it!
Sounds like pearls before swine. Better to save your breath unless they're asking, my guess.
Shouldn't be any legal issues, unless I'm missing something. I think you and others could carve out a very good business. Just spell it out for clients. And write me if you need kennel cough nosodes -- 3 kennels I supply, all having great results, both preventing it and treating those who get sick.