When my ageing cat was on his last legs, two vets visited our home. I held my cat, they injected him, and left almost immediately (settling the bill at a later

When my ageing cat was on his last legs, two vets visited our home. I held my cat, they injected him, and left almost immediately (settling the bill at a later date). My cat was 'asleep' quickly in my arms for our family to have a last moment together and then bury him. I'm not sure why you would want your pet separated from you and in a box to die by itself instead?