I was going to drop my kid off at school when a dog ran between two cars and my back tire ran over a portion of the dog. I slowed down and stopped not knowing what to do and watched the dog hop up and hobble away into an adjoining back yard. What seemed to be the owner followed the dog into the back yard. I immediately pulled over but had to roll up my windows as my dog was riding along. I waited a few houses away not really knowing how to react and asking my kid what she thought I should do.
When the dog quickly wandered off she wasn't sure how I should act either.
What do I do? My initial hesitancy is tied to the dog quickly walking away into what looked like it's home and the owner slowly following it away. I'm concerned of getting into the middle of a highly emotional situation if the dog needs to go to the vet. If the dog lay lifeless I would have had no issue with getting out and consoling as needed. Is there a difference? I think also am concerned I'll get told I'm responsible and need to help cover any vet costs.
Personally, I would gone immediately. That said, it was a high stress, emotional, and scary situation. What's done is done, there's nothing that going back now would accomplish. If you really feel bad enough to go back and explain what happened, I would suggest a letter instead. Let's you get it off your chest, let's the owner know what happened, and doesn't risk a physical altercation because the owner is upset about you not stopping immediately.
If it makes you feel any better, I've had 3 dogs hit by cars. The first survived, the driver did not stop. A neighbor told us. The second was lost and it took me hours to find him because the driver did not stop. It was devastating, and frankly, I've never gotten over his death. He was small, though, and it was night. I work off the assumption the driver thought he was a opossum or raccoon or something.
The third was hit twice, both times the driver stopped. Both times the driver was just as upset as I was, and we comforted each other. It wasn't their fault. It was my fault for not staying in top of fence maintaince, or assuming because I live in the middle of nowhere that's it's safe to let them run. Most dog owners aren't going to blame you, unless you're driving recklessly or aiming for the dog.
You're okay. It's a horrible situation, but you didn't do it on purpose, you didn't do it out of malice. You're still a good person. Be nice to yourself and try to move past this.
I agree they should have stopped at the time. But going back after having left the scene initially accomplishes nothing of value. It may or may not be illegal. Already crossed that line. It accomplishes an arbitrary responsibility that serves nothing but upsetting the owner of the dog again. We're probably not going to agree about it, I guess. I wouldn't try to talk someone out of going back, but having been on the victim side of this (and the driver's side, with a cat, where I did stop and talk to the owner), I would not advise they go back after having already made the mistake of leaving initially. Best argument is "I had to get my kid to school" which, to the grieving family, may well sound like "my schedule was more important than your beloved pet's life." That's irrational, of course, but grief is not rational.