Gaius felt ashamed of most of his actions while controlled by the goblin. They couldn't be helped, of course, but now he had to face everyone he'd wronged and the shame, illogical as it was, existed.
That was what he told everyone.
And that was all he would ever admit to, under any circumstances.
But, well . . . Slapping Uther on the back of the head had felt good, like it was an opportunity to finally knock some sense into him.
Failing that, he'd certainly had fun trying.