Killer, the Dobermann

Mrs. Adams called the repairman because her washing machine went wrong. They arranged an appointment, but she told him, 'I will go to work, but I will leave the key under the pot. Fix the washing machine, leave the bill on the kitchen table, and I will mail you a check. You have to know that I have a large dobermann inside named Killer, but he won't bother you at all. I also have a parrot, and whatever you do, do not talk to the bird!'
When he got there, the dog, Killer, totally ignored the repairman. But the parrot was cursing loudly the whole time, which drove him crazy.
As he finished, he blurted out, 'You stupid parrot, why the hell don't you shut up!'
To which the parrot replied, 'Killer, get him!'