Yup.
http://en.wikipedia.org/wiki/Adam_Kokesh
Adam Charles Kokesh (born February 1, 1982) is an American activist and talk radio host. Kokesh was a corporal in the United States Marine Corps Reserve and is a veteran of the Iraq War. He is an outspoken opponent of the U.S. military intervention in Iraq and has received media attention related to anti-war protest activities. He is the son of Charles Kokesh, a Santa Fe venture capitalist, founder of a firm called Technology Funding, and owner of the Santa Fe Horse Park.
Kokesh attended the Native American Preparatory School in San Ysidro, New Mexico.[3] He enlisted in the United States Marine Corps in 1999.[4] In 2004, he served in Fallujah.[5] He was a liaison between the U.S. military and Iraqi civilians as a member of the 3rd Civil Affairs Group.[1] He also worked a security checkpoint while in Iraq.[6] He brought home a pistol from Iraq in 2004[4] in violation of military rules, which prevented his return for a second Iraq tour.[6] Kokesh "had risen to the rank of sergeant after three-and-a-half years in the Reserves" and "was demoted to corporal and soon thereafter discharged honorably with a re-enlistment code that basically said, 'you can't re-enlist.'" Having experienced combat in Fallujah, Kokesh received the Combat Action Ribbon and the Navy Commendation Medal after his honorable discharge from active duty.[7]
After his discharge, and during a March 19, 2007 protest he attended, Kokesh was in the Individual Ready Reserve (IRR); a superior officer identified him in a photo caption in the Washington Post. On "March 29, a Marine major sent him an e-mail to tell him he was being investigated for misconduct by appearing at a political event in uniform. Kokesh responded, telling the major what he thought" and used an expletive in his reply, resulting in an additional misconduct charge.
In May 2007, a hearing was convened to consider changing Kokesh's military discharge from "honorable" to "other than honorable" on two points: "Disrespect toward a Superior Commissioned Officer," and violating "Wearing of the uniform" regulation. The panel recommended Kokesh be given a "general discharge under honorable conditions," a discharge status below "honorable," and above "other than honorable". Kokesh appealed the decision, and was denied.