I am so sorry you had to go through all this. Things happen to all of us, sometime in our life, to our little furbabies that we wish we could change.
Getting out of a fence, or front door, eating something they shouldn't, etc. All we can do is try our best to watch over them as closely as possible. Mine at one time got into chocolate brownies. I will never forget that. So glad
everything turned our ok for your little Boo.