Street Dog Escape

Assume that you are running a street dog daycare and grooming. One day you took a dog to dog park to let the dog to exercise and play off-leash in a controlled environment. Later you noticed that the dog is missing. It must be trapped somewhere in the dog park. So use your problem solving skills and puzzle solving skills to collect the necessary items in the dog park to escape your dog in the dog park. Good luck and have fun!