So frustrating to calm him down!
Saïx and you were part of the organization, however, you two barely interacted with each other.
You and Axel sometimes talk about him secretly being a werewolf since his connection with lunar stuff and his power during the moon.
Though you never excepted this type of mission...
So you seen Saïx go berserker mode about once or twice, but you never expected him to upset him so much that it made him turn to his berserker mode.
It really didn't make sense, what could've upset him so much that he went to his berserk state?
Unfortunate for you, you were assigned a mission where you were going to calm him down, since the others were 'busy'
You walked to his chamber that was overlooked by Kingdom Hearts. Seeing him just smashing his claymore in the ground of his chamber, eyes glowing yellow, grumbling, growling, and surely enraged at something
You watched him smashing his claymore and leaping across the room, until he spotted you, near the entrance of his room.
In response he growled at you, like a dog/wolf. Which would make sense to you, since, well, he pretty much is almost like a wolf.