Was it a proper kick or a firm prod?
There are points where dogs need physical discipline to make a point. They do it themselves to sort things out when a growl doesn’t work. But there is absolutely no need to hurt them, just get their attention in a way they understand.
Here’s a clue to where you stand in a dog relationship. If your dog is dragging you along on the lead, you’re the beta, and the reason the dog doesn’t obey your commands is because it doesn’t take orders from underlings.
But as santacoops says – if someone kicked my dog, I’d kick him back. 🙂
(I’m relearning all this – currently owned by a 12 week old Great Dane/Wolfhound X pup.)