Have you put on a dry suit, not burped the air, then dove head first off a dock? Until you have witnessed such an incident, I wouldn't claim that the air won't make you float feet first!
Buddy! That's right there with sailing under spinnaker.
Nah, more like this:
BTW, it wasn't me - I swear! But I do understand that it was predicated by "Hey Y'all! Watch this!".