It's also insanely expensive to have owners sue you after you killed the animal you left in their care. We had a fire about a year ago in Georgetown, TX. 75 dogs died. The owners are suing. There wasn't a fire suppression system and no one on 24/7 watching the dogs. They claimed to have cameras. If they did, it didn't save the dogs.

Years ago, my vet wanted our dog to arrive the night before a surgery. When I asked if someone stayed with the animals, I was told no. I made a deal with them to arrive early that day. I couldn't live with myself if something happened.