“Don’t try to understand ’em, just rope, pull and brand ’em.”

So goes the theme song to the classic early television show Rawhide, about a seemingly endless cattle drive through the Old West, which included a young Clint Eastwood as drover Rowdy Yates.

A maverick, of course, is a term originally applied to an unbranded cattle, or a person unbought, unbossed and unbeholden to anyone but his or herself. The term dates to Sam Maverick, a 19th century Texas rancher, and his decision to buck tradition and leave his cattle unbranded.