For those of you who ever wondered whether your pool cover would swallow you up if you fell on it like in the movies, no need to call Myth Busters, I have the answer:
Maybe. If you try to stand up, then yes, it will try to swallow you whole like an angry sea Kraken. If, however, you make like Patrick the sea star and flounder around like a confused walrus then no, you can safely make it to the edge of the pool and pull yourself out.
Bonus Trivia: that $800 custom made pool cover we just bought can withstand 300lbs of floundering walrus and not break a sweat.