a dog has written for doctor who
 spoofs and cultural references doctor who has been satirised and spoofed on many occasions by comedians including spike milligan a dalek invades his bathroommilligan naked hurls a soap sponge at it and lenny henry
 because of dogs overpopulation in some countries many animal control agencies such as the american society for the prevention of cruelty to animals aspca advise that dogs not intended for further breeding should be neutered so that they do not have undesired puppies that may later be euthanized