Sparring in Boston
My idea is to add "ghost damage" to be done in Boston. The way that this works is, when you're on the boston claim any players with rights of the englishman can hit you for damage. This will however not remove any blood from your actual humours bar. When your blood reaches a fictional "zero" you'll get stars over your head like when you are KO'd to show that you have lost all of your blood. After these stars go away your fictional blood will be reset to full. This allows for free, scentless sparring in Boston.