Smuggled
His first memory was of being shoved into a sack. It was cramped and uncomfortable. His right head kept biting his middle head until it bled. His left head whimpered and cried, but the human who had shoved him in to the sack didn't care.
He had been pulled screaming from his mother and there was to be no comfort. No warm milk from a soft teat. No wet licks to bather him. When he urinated or defecated he was left to lay in it and stayed dirty. All he could do was cry. The human hit him when he did, so he learned to cringe when the sack opened. He tried biting once, but that only brought pain so he only did that once.
The food he was given was not the warm milk from his mother. It was dirty water and rancid meats that made him sick. His teeth were too tiny to eat it very well, and his left head was too afraid to fight the middle or right heads for it any way. They finally settled on a system. The Right head would chew on the meat as best as it could while the middle head would chew on the breads and vegetables that would get thrown in. The Left head would lap up the dirty water. They managed to keep the body full enough to stay alive, if only just.
Then one day came a pulling at his insides. He did not know what had happened but it made him vomit over and over again everything that he had eaten that day. Knowing that the sack would not get cleaned he started to lp up the sick so at least he would not have to lay in it whining the whole time as he did so.
Suddenly he felt himself being unceremoniously yanked from inside by the human. He yelped in terror. He knew this usually meant a beating and cringed and cowered licking at the humans hands trying to placate him.
This time was different. He heard another human start yelling and felt himself pulled from the first human. Only this time there was no beating. The second human sounded scarier, but he felt gentler. Like his mother had felt. He felt himself being tucked in to a warm soft place. Soon he felt a loud rumbling. He would normally have been terrified but the other human put a large hand on him and scratched each of his heads behind his ears until he felt calm and reassured enough to go to sleep.
When the rumbling stopped the big human took him into a human place where there was another dog. Not like him though, this dog only had one head. But this dog picked him up by the scruff of his neck and pulled him into a nice soft bed.
Later he got a bath, and nice soft food. And warm milk. And clean water. And the big human gave him hugs. And told him he was a good boy. And that he was nice and clean and fluffy. He guessed all humans weren't so bad after all.