Dog Whisperer

Cesar Millan is a great trainer to train dogs which make problems with aggressive and violent uncontrollable by the owners.
He knows how come the problem behavior being from?
He counsels the pet owners first and advises them in right way.
He insists on being a mind leader and strict first and affectionate second.
He is a great mind reader of dogs but I'm not sure he might be a leader of people.