Mines not, and i'll be sticking with her.
Others certainly are, about 12 years ago i over walked my big dog when he was a pup, and he ended up
with over tired front legs, really stiff, and had problems walking, so took him to one vet who told me he
needed both his front leg joints replaced a common problem in large breeds he told me, would cost £6000
but my insurance would cover it. I went for a second opinion with my current vet, and she told me to get some green muscle
tablets from the pet shop and rest him for a few days. He went on for another 11 years, died this summer from cancer