Over the years there have been many "mistakes" the worst was when my husband & I got our 1st GSD, Cheyenne, about 17 years ago. We used a trainer whose methods where cruel. When Cheyenne growled at my husband for trying to take a bone, the trainer had us hang him by his neck. I'll never forgive myself for that, of course we never did that again after the trainer showed us.
Now all of my dogs allow me or my husband to take bones/toys out of thier mouth, never had to hang any of them.
Lakota - WGSD 1/13/10
Wolfen - WGSD 12/31/14
Bull -WGSD 2-10-10
Apache - Shiloh Shepherd 12/15/02 - 6/9/15
Kiya - Shiloh Shepherd 5/15/04 -12/19/25