No matter how vigilant we are there are always accidents that can happen and this was just one of those ...a pure accident and had nothing to do with you being responsible. You shared so many good years together, try to remember just the good memories in honour of the love your little pup gave you---she would be very unhappy to see you so distressed. She knew how much you loved and cared for her and you gave her the best that you could.
Bookmarks