This is a permanent form of identification which can be read using a special scanner. Ask your veterinarian if this service is an option. Opening a crate door removes the pup's whining so the whining negatively reinforced door opening. Sitting caused collar pressure to be released, so pressure negatively reinforced sitting. If you select a nylon lead, please use with a small but sturdy clip.
Large clips can hit the dog painfully under the jaw or on.
Possessive Dogs Dogs that are possessive of food, toys, sleeping spots or people are potentially quite dangerous. Seek professional assistance immediately. Do not try to control the problem through avoidance as this only hides the problem, it does not cure it. Every pet should be vaccinated against it. Reinforcement A reinforcer makes a behavior MORE likely to occur.