In a game we used to play as kids, we'd say which superpower we wanted and there was always some little lad who had seen 1950'2 sci-fi classic, The Man With the X-Ray Eyes, who wanted to be able to see through people's clothes, etc. For me, a spectacle wearer from age 5 to 37 when laser treatment corrected my vision, just being able to see would have been good!
In two situations today, I felt I used a little x-ray vision but on both occasions I still had to make a judgement call. In the first situation I had two players who had already been cautioned, challenging for the ball near the touchline. I saw the one without the ball, race towards his opponent but at the split second of contact I had two other players cross my line of sight...