What happened to my face

Surfing Trauma Story Time!
The very first time I learned how to surf, I was told I was "A natural" ... whatever that means.
Apparently my stance was good and my ability to stay on the board was "uncanny."
So of course, you tell me this, and I'm like "I AM THE PROPHECIZED KING OF SURFING! WATCH ME IN AWE!"
And that equated to me trying to emulate what I'd always seen in pop media depicting surfing, I decided to "Hang Ten."
PHYSICS STORY TIME!
Turns out, if you stand on one end of a surfboard, thereby applying a downward force to it, there is an equal and opposite force at the other end of the board pushing up.
Sooo.. The board IMMEDIATELY flipped headlong and THUNKED me on the back of the head so hard it forced me under the water and I literally ate sand. (Also had some shoved up my nose.)
So there I am, concussed, underwater, completely confused and disoriented, trying to repeat the mantra I heard from Adam Savage once "Calm people live, Scared people die" over and over as I figure out what I should do, all while tumbling across the sandy shore bottom.
I immediately cover my head and calmly ball up, when the wave stops tumbling I stick a leg out and find the bottom and kick off up and break the surface spittin' and chokin' on sand and brine.
And then the worst part happened. 
I realized literally EVERYONE had just watched me totally BEEF it and the shame settled in. :')
And I never surfed again. 
The end! 
:D