I always say that you are never too old to learn something new. In over 60 years of hunting coyotes, I have heard them called "Yotes," "Coy-Dogs", "Brush Wolf ", American Jackal ", "Prairie Wolf ", "Cased Wolf ","Little Wolf ", but never "Dog"! I believe that there are around 20 different species of coyotes. This must be a millennial acronym I might have missed? I'll have to make a note of it. Dog, huh?Whenever we get a dog hung up on coming to the call we sit silently for a few weeks. I have found not using calls and using scents works just as well if not better than a calI , I usually walk my dog in the area with great success so something along those lines. On that note on old big dogs that have no doubt been educated over the years I use this trick... my wife buys untrimmed chicken and puts the trimmings in a bag for me throughout the year. When I have an educated dog that is really hung up I always bring chicken with me and hit the caller. I don't put the chicken out until after my sets though. I put some all around the set and back out for a few days. Repeat it again, usually by the 3rd time or a week or so later I really screw them up. They learn that the call means food later in the day for them, I will go out and call, then not leave any chicken out. I will return early afternoon or around 2-3 hrs before dark and sit quietly. If the dog isn't seen I will again leave chicken. I have never had this method fail and honestly use it almost all the time now regardless. I used to bag 1 or 2 dogs a year when starting out, now 12-15 is average and I don't go out a lot. I am in upstate NY and they are very hard to hunt here, best of luck