When you use a heelhook which twists your opponents leg (and ankle) to the same direction as toe hold, is it still called a heelhook? I mean that when people mention heelhook they mean (at least often) the dangerous leglock which can break your knee, but if it's done to the opposite direction (with a different kind of hold of course) it's more like an anklelock at least in my opinion. Do people find this submission dangerous as well? Does it really twist the knee too? This whole thing might be common knowledge, but it has kept me thinking.