[Yup, grabbing him by that little long bit of hair on the back of Mutsunokami's head is exactly what Horikawa does. He does so with little hesitation, reaction time alarmingly fast and the relaxed expression on his face unwavering. ... Well, it seems relaxed, but---]

... Where are you going? [Somehow, despite his inquistive, yet pleasant tone, Horikawa's words have a slight of chillingness to them. His expression becomes one of disapproval, as if he were a mother who caught her child stealing from the cookie jar for the fifth time that day:] Geez, Mutsunokami-san! It's bad manners to walk away from someone when they're trying to tell you something important, you know! I don't like getting mad, so please listen to what I have to say, at least. Okay?

[Don't make him ground you.]