Don't be too hard on Scamp. Sometimes it just takes a lot of time and practice. I had a Retiever/Sheperd mix that never quite got the hang of fetch. I worked with Shadow a lot and he just never did fetch. But, now Louie who is a Corgi is a different story. My Husband taught him how to "Get the BALL" but he didn't teach him how to stop playing fetch! We have a house FULL of SOGGY tennis balls!