Steve,
Laughing with you, not at you. I put my first P1 into the Sea of Cortez in December doing exactly what you did. I was filming two snorkelers, flying from outside them in toward them, then to the beach, at ~3' above the water. Paused just outside them to catch one of them going fins up, diving, then when I went to resume flight path toward beach, I pulled left stick back instead of right. Bounced GoPro off one of the divers, totally immersing the P1 in salt water briefly, though somehow it kept flying. After ~5 seconds, presumably once the salt water hit the electronics, it stopped listening to me altogether, and headed out to sea. Miraculously, a separate group found it an hour later in 12' of water, and I was able to recover two days of filming on the microSD card, which for a few hours I thought was a complete goner. Suicide averted, footage recovered, $500 reward paid to recovery diver, and P1, H3-2D, GP, all toast.
Kelly