well you could teack him how to count.. Happy does it in 2 differnt way depending on what I ask her to do. she knows the ages of herself all my dogs, and how old she is turning, she will bark them or tap my hand with her paw the # of times. I cant also give her any number between 1-10 including halves and she will bark them or paw them(well she cant really paw halves, but when barking she does it by barking shorter and softer) alone the same lines I can hold out my hand and tell Misty either 1 or 2 and she will put either 1 paw on my hand or 2, she will also do this with hand singles, I hold up 1 finger then hold out my hand she places 1 paw on my hand, I hold up 2 finger she places both paws on my hand. also what about teaching him to tell the differnce between objects for example I can place a leash and a tug toy(long braided fabric) right beside eachother and tell her "leash" and she will grab the leash or "tug" and she will grab the tug. umm Happy walks herself I will put a leash on her, hand her the end and tell her to take herself for a walk, and she will hold the end and prance around with the leash lol you could teach him to fluff your pillow! I tought happy that it neat lol I hand her my pillow and tell her to fluff it she then precedes to shake the life outa the pillow till its way fluffier then any human could get it! and brings it back to me! now fetching a drink from the fridge is not a good idea to teach! lol I know someone with a BC pup who they tought to do this, the pup decided he wanted his mom to get up, so off he went to the frindge, opened it, and upon finding no drinks he preceded to grab the pie in he bottom of the fridge, took it upstairs on dropped it on his moms face lol