He liked to find out what things a dog wanted most .
Then used that as a reward to encourage positive behavior ; for example , in one instance , he found that a difficult Pomeranian valued her dog bed , and Klein used that as a reward .
He liked to find out what things a dog wanted most , and then used that as a reward to encourage positive behavior ; for example , in one instance , he found that a difficult Pomeranian valued her dog bed , and Klein used that as a reward .