If I remember correctly (this photo is from around 2002 or 3) he is National Guard, which means he is a reserve soldier. He only meets with his unit for one weekend a month and two weeks during the summer.  At that time, there was a huge scandal of National Guard officers hiding cases of fat people in their unit because it hurt their performance evaluations and chances of promotion. So they would do everything they could to keep these fat fucks from failing PT or from being weighed in. Supposedly, that situation has been corrected now.