Wearing a growbag can actually alter human behaviour, I've seen it! I was in the mess at Akrotiri when a squadron on APC were enjoying happy hour in their growbags. One of their number was in civvies and was looking distinctly out of it, not bantering or messing about with his mates. When drinking games started he disappeared only to return after 10 minutes in his growbag. Within a couple of minutes he was at the top of the human pyramid roaring his head off and chucking brandy sours about.
