He describes the photo in his security badge as a smirk. Is it really a smirk? English is not my native language so I would love a native speaker to give an opinion.
One of my dictionaries says a smirk is "To smile in a way that is affected, smug, insolent or contemptuous."
A smile typically suggests amusement, and I see nothing in that expression suggestive of amusement. I would call it something more like "displeasure at finding myself having to once again clean up someone else's mess." So maybe not actual disgust, but something related.