I have an 10-month old male Golden who has ADHD -- that is, he has a short attention span and cannot play with one thing for a long time. I tried using Kongs of different shapes and sizes, Buster Food Cube, Nina Ottoson's Puzzle Toys, Tug-A-Jug......he will either figure it out and get the treats in 10 minutes or if it's too hard, just give up. The only thing that will keep him busy for about 1 hour is a twisted Dingo rawhide chew but I can't give him all the time! And this hyperactivity is after walking him daily for 2 miles. Any suggestions on how I can teach him to entertain himself/sustain his attention on a toy? I am thinking about getting another dog as a playmate.