My golden retreiver has a problem. When ever she is VERY EXCITED she cannot control her energy and rips the grass out of my back yard by the roots. We have scolded her and told her no..... She is almost 2 years old and I do not know how to make her stop doing this. She also does it when playing with toys in the back yard. She will "accidentally" bite the grass instead of the toy. Does anybody know how to stop this golden girl from being so naughty?