Here's the original full video, if you haven't seen it yet:
https://youtu.be/79W09Cx5PL4
How it happened:
The LWSA uses tennis balls as a training aid for the students.
The instructor (capt that fell out) was reaching down over the gunnel to grab a tennis ball in the water. At that moment, one of the student's boat tipped and his boom struck the throttle forward and threw the instructor out of the boat.
Luckily it was running in a tight circle, and no one was hurt!
Yes, I saw most of it, except the capt getting thrown out.
Brady (the teen that jumped into the runaway boat) is only 17 and is headed to the Navy in two months.