When he noticed how those drunk humans suddenly sobered up and all the garbage was cleared, Shigure knew that something was up. Now the question was, how was he going to handle this? It didn't seem like the other knew that he was a demon, so theoretically he could avoid fighting. Shigure chuckled at the thought. Avoid a fight? No way, he was going to beat the shit out of whoever was ruinign his fun times. But rushing into a fight without knowing his opponent was not a smart thing to do. So he was just going to observe the little good-doer for a while. It may not be a fair tactic but who cares.