Flying along in G, gin-clear severe CAVOK along the coast.
I spot a light aircraft (a Skyfox or Gazelle thingy I think) ahead, tracking the same direction, 500’ or so above me and about 1/2 a nautical mile abeam, but much slower. As I watch him pass abeam and above when I overtake, he obviously spots me.
Him: “Aircraft [of my description] at [my location]. Identify yourself!”
Thinks me: “Air Force 1.”
Him knowing my callsign wasn’t going to decrease an already non-existent risk of collision....