Here is my best one: I was a sailing instructor a couple summers during high school. We normally set up racing courses for the kids to sail around, using buoys and we would ride around in motor boats giving instructions or helping if any one capsized. One afternoon we sent the kids back to the beach and were going to pick up our buoys and there was a little sunfish sailboat with its rudder stuck on one of them. The dude’s head was down as he was reaching under the boat to get free buoy line and we roll up and shout “hey can we help you?” He looks up and respondes “oh ‘allo, yeah cheers mate.” We were all speechless, it was fucking Paul McCartney. We freed his boat sent him on his way and sang “NAH NAH NAH NAHNAHNAHNAAAAAH NAH NAH NAH NAAAAAAH HEY JUDE...” as he sailed off. He turned and waived. We felt pretty good about saving his life.