If there was one thing I learned during my brief time in the United States Army, it is that you never - under any circumstances - attempt to eat food outside of chow. As not only is it considered an act of disobedience towards your superiors, but also an act of theft, and arguably worse, a violation of the Army Values.
Such an action would have landed your entire company (God help the unfortunate bastards) in contempt by the drill sergeants, and as a result - your branding as a Gomer Pyle, Blue Falcon or perhaps even the rightly received punishment of a blanket party - and in extreme cases, an Article 15.
"Rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add 'within the limits of the law' because law is often but the tyrant's will, and always so when it violates the rights of the individual." Thomas Jefferson