No, not the slutty typist on Eisenhower's staff that gained a lurid reputation, I'm talking here about the German mine that jumped a meter into the air to explode and throw ball bearings in a 360 degree arc to kill and injure people anywhere near the detonation. These mines scared allied troops more than any other, mostly because it gained the reputation of being a de-baller, though it wasn't specifically designed to de-ball infantrymen, as you'll see in the video. The de-balling (or the fright of de-balling), was just an extra benefit unforeseen by the designers. I always wondered how these worked. I couldn't imagine how they jumped straight in the air to work effectively without the 150 pounds of poor bastard stepping on it interfering with the function. This is all explained in the video.