If it wasn't for culls I wouldn't have a dog.
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It can be frustrating but some will still make a dog. Every dog I have I got from someone that didn't like something about them. One was to rough. One was crazy and wouldn't hunt out far enough and checked in to often. One kept trying to climb out the bay pen. The last one the guy wanted to start running loose dogs and a RCD didn't fit in and he was to much trouble to lead in.