"I won't get sick," the knight says scornfully. "Puny human diseases don't affect me anymore."

...he thinks. He hopes. Probably he's just cursed himself to another nasty bout of influenza, but at least that's not rabies. If nothing else, though, he does radiate heat like a furnace, something Lacie will likely notice in short order. Probably he kills a lot of harmful pathogens just by existing.

In any case, cutting in on his roaming of back alleys like this is rude.

"Are you thinking I'm going to eat a unicorn? I don't know that I want to eat a unicorn."