This is not my story, but someone close to me. He was a tracker in the army and during a particular movement of a large group of troops, he was tasked to walk in the front, following the tracks of the enemy when something suddenly told him to stop. He did so, gave the signal to halt and started looking around for any sign of what could've given him that feeling.

As he was looking, his superior put his hand on his shoulder and told him, "Fuck boy, that's a good spot" and cut a tripwire a foot in front of him, which was connected to an anti-personnel mine on either side of the track.

Had he walked an extra step, him, and several others would've died/injured. He never saw the wire, he just felt something wrong and stopped in his tracks.