Basicly a way to say no to pvp,
-The character is in a state where they can only walk and talk, clearly opting RP over PVP for 15 Min?
-Enforced subdue?
Im unsure how this could be implemented, but I feel that the kill option is chosen to easily on Arelith while many players are just as much willing to surrender and this could also be a way to limit death of mass pvp bystanders.