outside

A man with reddish hair stands trapped inside a giant transparent enclosure shaped like a Klein bottle, in a prison yard with a brick wall and grass. Outside the bottle, a uniformed guard with a cap stands with hands on hips and says, "Enjoy parole, sir." The caption below reads: "In Klein-jail, technically you're not trapped inside." The joke plays on the Klein bottle being a surface with no distinct inside or outside, so the prisoner is paradoxically both imprisoned and on parole at once. Votey: a close-up of the weary prisoner's face as he says, "Life is hard, here on the out/inside."