Margo the 1.5 yo springer spaniel bit a 5 year old boy last night. The 5 year old was running in the house chasing my 10 year old. The kid slipped on the slick floor and slid. As he slid Margo sprinted in and bit his heel. She grabbed on and shook his foot. There was no growling and I did not notice any special body language on Margo.
Luckily no injury, just scared the kid. He was fine and running around again in under a minute.
I yelled at the dog and she bolted. I chased her down and locked her in her kennel.
This wasn't anything the kid did wrong, he had not even been playing with Margo at all, they had just showed up a couple of hours before.
I haven't decided if Margo thought she was defending Dylan (our 10 year old that the 5 year old was chasing around), if she was playing, or she just was way over excited and the prey drive kicked in. I could see her thinking the 5 year old was running from her.
My real worry is we have a 4 mo old baby who will be running around and falling. Margo has never done anything like this before.
For now we are keeping Margo separated until the friends leave town. This cannot happen with the new baby.
Any thoughts? I'm looking at training options. Obviously I'd like to avoid rehoming her as she is the 10 year old's first dog. The drama involved in that would be epic. However, I will do it if it comes to it.