one of the high concepts for one of our characters in a tabletop Dresden RP is "Wereraven Robin Hood"
he's so far pulled one over on Loki three times and has managed to get my character stuck with a cursed sword.
he's also running around with all the cursed artifacts the big bads need for their end the world ritual and NONE OF US KNOW it
the seven sealed Denarian coins are in his possession (again, magically sealed, so he hasn't touched them) while the coins that we and the bad guys are chasing are fakes that he pawned off on Loki, the Chalice of Loki and the four Necronomicans are also in his possession where we thought one of our other group members had them (he rolled a good burglary check so got them without us noticing during a crisis)