Similarly, an alternative explanation is that a Doctor visited you (you wouldn't need the heal) and the Doctor used Armor that night.
Also: interesting that they suspect I may be Dracula when I was role-blocked by you last night...If they forget about the role-block, it's entirely possible that I could claim I visited you and used armor last night, if worse comes to worse, and then fight it out with the Armorsmith in Day Chat.