Instinctively, dogs bite & attack, especially when running in packs.
It amazes me when they don't, and they end up rescuing us, leading us when we are sight impaired, protecting us when we are attacked by our own kind, and even mothering/looking after other living creatures as if there were no differences between them.
I believe dogs love, and if someone seeks to harm me, I hope Thor loves me as much as I love him.
As far as heaven? Who knows and who can say?