Everyone thinks Jason wears a domino mask under his helmet for the drama of it, but the real reason is because one time he sneezed wearing the helmet and it was the worst experience of his life.
He immediately started making the most grossed out horrified noises the gang member he had tied up had ever heard, and Roy doubled over laughing, completely giving up the intimidation factor they had had going.
They ended up getting nothing out of the guy and Jason immediately went home and designed a domino so he could throw the helmet off at any given moment while still hiding his identity. Roy still laughs whenever he thinks about it
