SemaviLady - I didn't realize you were talking about people training their own dogs. I thought we were talking about training of dogs in facilities. That's why I was saying they never use prong collars. But yes, I watch people train their family dogs with prongs all the time, the prong isn't new to me. One place that will absolutely NOT use them is PetSmart. For some reason it is against the store policy, just found that out while talking to a salesclerk while doing some shopping there.