An F-8 recon bird was being stalked by a MiG-21 during a run over Cuba during the missile crisis and the pilot went supersonic at tree top height on the egress to escape detection. As he headed for the coast he saw a bare ridge line ahead of him with a lower "saddle" in the middle that he aimed the nose of his jet at. As he approached he noticed something outlined in the middle of the saddle, it was a burro with his rider, and the guy was busy relieving himself. The pilot wasn't sure of the clearance but he went over the guy's head at maybe 50 feet doing M1.
No it most certainly wasn't me but I always wanted an excuse to tell that one.
A "supersonic tales" thread might be interesting.