Aww...I can totally relate...I had to do the same with my beloved beagle over the summer.I had put down my other shar pei in june who I had for 14 years
I feel like I must have missed something here but, you put your dog down after she bit your little boy ?...Am I clear on that ?A few months ago we had to put our beloved 13 year old Springer Spaniel named Madison (or Maddy) to sleep after she bit our son. We loved her very very much and she was the sweetest dog ever (right up to the second she bit our son). It was really sad.