I've inadvertently opened the hatch a few times, once while leaning against the counter at our veterinarians. Luckily, the dogs were standing next to me, because if they had been in the car when the hatch opened they would have jumped out, right next to a busy highway.
It would be nice if there were more programmable options for all this automation. I never use the buttons on the fob, so it's just one more thing to keep track of. My dream come true would be to look on Amazon and find a variety of replacement fobs, including one with no buttons, a small waterproof one, and one that could be switched on/off for use as a hide-a-key.