Here is a poem I wrote inspired by that scene from BRIDE OF RE-ANIMATOR. I hope you won't think it's doggerel.
People screamed at the dog with the human hand
People screamed, but Herbert, I understand
It's nice to have a dog about, that can open the door and let himself out
That can do the simple chores you ask, and when told to shake hands excels at the task
He can catch a frisbee like no other dog can
That's why dogs are called the best friend of man
And especially a dog with a human hand
There are other poems, but we'll let sleeping, (or dead), dogs lie. In all fairness, I have to admire a dog with a strong handshake. It shows integrity and strength of character. One could confidently buy a used car from a dog like that. Of course, shortly after the sale it would try to savage you with it's teeth, while punching you with it's fist, but really, that's to be expected. Whenever you buy a used car you're always taking a risk.