"Dermestids," Will repeats, his smile brightening. "Either the best friends or worst enemies of forensics, depending on what they're trying to analyze. That's ingenious. I'm sure they won't mind cleaning up some dog fur and shed skin cells."

He almost lets it go entirely, but- he does find his own eyes flicking upward, trying to decipher what's never been decipherable. "It's a bad one, huh? You can ask about it." 'If you want to', is Will's implication. He certainly seems like he's not going to be bothered about it either way. He knows the things he's done.