Don't you hate those child-proof bottles? They seem more adult-proof than child-proof to me. Manufacturers are putting everything from mouth wash to vitamins in them these days.
I try my best to follow the instructions: "Push down and turn to open," or, "Squeeze sides while turning." It might as well say, "Pat your head and rub your tummy at the same time." I end up trying to bite the plastic lid off or puncture it with a knife.
Sometimes in our effort to make life safe, we complicate it terribly. There is a place for safety, but it needs to be balanced with simplicity.