maverick

8:32 PM | BY ZeroDivide EDIT
maverick (n.) Look up maverick at Dictionary.com
1867, "calf or yearling found without an owner's brand," so called for Samuel A. Maverick (1803-1870), Texas cattle owner who was negligent in branding his calves. Sense of "individualist, unconventional person" is first recorded 1886, via notion of "masterless."

Maverick's stated reason for not branding his cattle was that he didn't want to inflict pain on them.[76] Other ranchers, however, suspected his true motivation was that it allowed him to collect any unbranded cattle and claim them as his own.[76]