We do this doorpopper training about once every few months. Creed loves this and it keeps him sharp and having fun. I press a button on my vest that automatically opens Creeds door and he comes and finds me. We have been doing door popper training since 2017. #k9creed #furmissle #k9unit #doorpopper #femalek9handler #workingdog #k9training101 #wecountry