I do know someone who does this. It freaks me out to even think about it. I've never had to euthanize a newborn, but have lost newborns to their own natural death. I did wrap a baby that didn't make it in a cloth and placed in plastic bag in the freezor one nite at 2 am when it was impossible for us to bury the poor little thing at that hour. I would never place a live puppy in the freezor no matter what. I'd pay any extra amount of money I had to , to have my vet meet me at her clinic to do it in a humane way. The thought of the freezor thing just doesn't settle well with me.