He began I Said Sit in 1988 as an in - home pet training service and later offered day - care and boarding for dogs ; he expanded his service by networking to vets , groomers , pet stores and breeders .
Klein trained dogs for several decades .
Klein began I Said Sit in 1988 as an in - home pet training service and later offered day - care and boarding for dogs ; Klein expanded Klein 's service by networking to vets , groomers , pet stores and breeders .
Klein trained dogs for several decades .