To be honest, if that was me, I don't think I would have realised that he wanted to attack me. I could tell from the oint where he had his hand to his mouth and stared around, but in these situations, I do exactly what you just described and completely ignore my gut, something I intend to change. I once walked through a field where a number of cunts were waiting at the other end, and instead of going the other way like I wanted to, and should of, I just carried on straight through them like an idiot.