PurrsprenTheWayofCats

I'm running a Cosmere RPG campaign and I initiated a sidequest in which they learn that there has been a series of documented simple thievery occurring in the city, all witnesses report the same calling card - the item taken from one person is found replacing the newest taken item elsewhere, but report a different thief every time. What are your favorite "Wayne explanations" as to why he took some specific item or left another one? Any alternative suggestions of what a Wayne-character might do on Roshar?