"Prisoner managed to break his cuffs," Millicent said. "Got a death sentence for it, but the damage is done, the key doesn't open anything anymore. Figured you could probably do something with it."
Put it on a key ring of her own, maybe start a collection; Millicent supposed she could have gotten the other keys that had fit the broken lock from the other guards too if Bayleigh had wanted a whole ring of them, but she'd only given the one that had been her own. Maybe Bayleigh had other ideas for it. "You're welcome," she added, belatedly.