Oh I am sure it would be, but a transmission of "passenger in XYZ callsign, if you can hear us, it seems your pilot is incapacitated, you may have to land yourself...." would really ratchet up the suspense
But, definitely illegal (not to mention worrying for everyone else in the circuit....!
Back on topic - how's the flying going Sunfish? Mazzy? Hog? etc etc
Sky