The desensitization method which you described doing, sounds the way to go as regards the squirrels and I reckon, if you keep that up you'll get there. The only problem I have with some trainers, including the one we have now, is that they fail to realize that different breeds pose different challenges. Our trainer is a nice guy but after over six months of trying to make him realize that getting Humphrey's undivided attention is not as easy as it is with his Australian Shepherd, he must have come across an article in a doggy magazine last week and announced on Saturday, "I read this week that cockers are apparantly not quite as easy to train as other dogs because they always have their noses to the ground!" EUREKA!! Think he's finally cottoned on!!!!!😂