The puppy never give up

It's a puppy from my friend, it has deformities in the hind legs from birth, people around me advise me to bury it, but because of love for it my friend tried to nourish it. , although it is very difficult, it can not move on its own, it can only be very hard, and as time goes by, it grows bigger, my friend and I think about how to make it work We made a pair of hind legs with a water pipe along with the wheels, and this video we recorded was moving on new feet, it looked very tired but also I like this, we feel very happy, because of its strength, a very strong energy, I hope it will live happily later.