I would love it if a dolphin knocked me off my stand up paddleboard! Just get back on, no harm, no foul (unless we bonked heads and I became unconscious and drowned--then: dolphin steak for dinner). But I think they're too intelligent to hurt themselves running into me, like they probably can make a mid-air vector change and miss me like this one did. I always remember, I'm in THEIR house, and I am polite.