Another of my many adventures was aboard a KLM B737 from MAN to AMS a few years ago now.
It was a typical beautiful British summer day in MAN.....torrential rain, thunder, lightning, hail. Boarded on time, all good. Taxiied out, brilliant...managed to take off absolutely fine. Then came possibly one of the loudest claps of thunder I had ever heard, accompanied by interior lighting flickering, a few other pax whimpering a bit (me, I was enjoying the light show out the window). One of the flightcrew made one of those "we apologise for the weather disturbance" type messages and that was that...
Finally climbed out above the clouds and glancing around the cabin and something caught my eye....looking at my wingtip, looked fine.....looking at the other wingtip....hmmmmm....something is missing that wasn't missing before leaving the gate. Somewhere down there...back there...someone on the ground has aquired a winglet (hopefully no-one was underneath it when it landed)
Landed in a very sunny AMS, got off the plane and scooted to the gate for my next flight. Sat there watching the various movements til my next flight was boarding and there, in the distance, was our now one winglet B737 being towed to the maintenance area. I shall consider that the thunderclap may have had a hand in the winglet taking off by itself but I do not know for sure.
Not sure how many others on the flight noticed we arrived in AMS with one less winglet than we left MAN with but for me it made an otherwise uneventful flight a little more interesting.