Fear leads to obsession with power, and obsession beckons the darkness.
So, what about Siegfried with shorter hair in the DOMA AU? He’s affected by amnesia, because Dartz had to erase his warm and pleasant memories to make him obedient. And since his long hair is one of his precious characteristics and connected with pleasant memories as well, he could have just cut it off during an Orichalcos ritual.
So much glowing! Gah- my eyes! Being blessed with such a lovely vision~
I am Terra 