So sad to read this. I hope time heals you and Pebbles lives on in your heart. I don't think I could bring myself to watch the vidoe either.
I must say that for them to have video in their shop is pretty good business practice. That's an interesting point and know I'm going to ask the next groomer i use if they have video of the shop where the dogs are done. What protection for both parties.
I'm sorry for your loss. I just loss my lil girl 11 days ago and its very hard. Sending hugs your way!!!