Summary:

Ilya is not going to steal Shane Hollander's dog. That would be illegal. And wrong. And someone would probably find out and make Ilya give him back.

So. Not stealing.

But there is nothing wrong with giving Chernysh all the pats and treats that he deserves, is there?

Nothing wrong with encouraging Chernysh to spend more and more time at Ilya's house until he doesn't even remember who Hollander is.

Because Hollander is stupid and boring and does not deserve a dog as good as Chernysh. No, he doesn't, does he? Because Chernysh is the best boy in the whole world, yes he is.