Not much. Since our formation, fights that involved rough words happened only about 5 times i think?
One thing i remembered is during a tour in Ibaraki or somewhere in the midst of a live, i entered the audience area that was not supposed to be part of the plan in the midst of a song. Before the encore, in the dressing room, Shou-kun was really mad like I've never seen before and i got seriously yelled at.
Aaah~ that happened.
But after about 2 minutes, he gave me a tight hug.