These Moments Explain My Answer. Every once in a while, someone asks me why I don't use or recommend e-collars. My answer isn't based on one study, one philosophy, or one dramatic story. It's based on years of watching everyday pet owners trying to use them in everyday life. In my experience, the biggest problem isn't simply the collar itself. It's that the collar is often being asked to do a job that should have been done through training long before the dog ever wears it. O