When I looked up, there was a rather tall J-d00d stumbling around, looking confused, and covered in blood. (looked like it was coming from his forehead but there was sooo much it was hard to tell) I had to cross the street there so watched on as a girl (gf?) came at him with a skateboard (his maybe? she wasn't dressed for it) and started crying/screaming 「もう帰ろうよ！！帰ろうよ！！」The guy pretty much ignored here and went storming across the street, blood flying everywhere and people moving out of his way....all the way into Kabukicho with the little girl in tail, still screaming 「帰ろうよ！！帰ろうよ！！」I had things to do so rather than video and follow the dude, I went on my way but it was definitely one of the more interesting scenes that have unfolded in front of me.On another tangent, 99% of all the crazy shit I've seen happen in Shinjuku has been in that area....for all that craziness and traffic, why no koban?
. But anyway "walking towards Kabukicho" doesn't exactly help pinpoint the area you were talking about...