I prefer flippers. I've never been cut opening/closing one. I close them like I do with a slipjoint - two hands, one holds the knife horizontal, blade up; the thumb on that hand releases the linerlock/framelock then once it just clears the lock I move my thumb out of the way and close the blade with the other hand. Other than that, I hold it point down at my side, release the lock with thumb and close the blade against the side of my leg/hip. As I said, never been cut either way.
Rich
Rich