this is why it is crucial to keep your deaf dog on a leash, even after they have been thoroughly trained. we are now coming to the real matter. the meaning is always there, but many times people are blind to it. this appears to be another case of self funding or do without. hope you have a beautiful christmas and wonderful new year! obviously, the need should not be denied. it was a whole new experience for me. it’s just a tool that people choose to use (or not), but our motto is: lead with the learning. 