He'd never seen Lannister fight left-handed, but wasn't sure that meant he couldn't. Sandor himself wasn't as good with his left as his right, but that didn't mean he wasn't capable. Still.

"I'd like to see that," he said with a wide, snide grin. "Unlucky for us, there's no swords here-- or maybe lucky for one of us." His mouth twitched, the burnt skin pulling. "We've always been on the same side til now. It'll be interesting to see what happens now we're not."

It wasn't that Sandor was dying to start a brawl with the Kingslayer-- he wasn't looking to fight with anyone unless they started one with him first. But he wasn't about to give an inch, especially not now that for the first time in his life, he didn't have to give a damn what the man's last name was or how respectful he was supposed to be. Don't work for him anymore, he reminded himself. And lords or commoners don't make a shit of difference here. He knew if he repeated it to himself often enough, eventually he'd start believing it.