Your master(partner) did soomething varry wrong when he punished you. Not that he punished you, but he let his anger get in the way. he fogot or didn't know SAFE, SANE, CONSENTULE. every thing done folows these three things. If you put anger into the mix than it is never and I meen never safe and that includes punishment. The drowing of blood, and the bruising for a vary long time is an indicater. Unless you bruise varry easly it shood not last more than several hrs to a varry few days, but nothing that shood make a problem with you vanila life. He needs to step back and take stock in what he is going to do before he punishis you again, and you will do somthing again that will require pnishment, weather bay accedent or on purpuse, you will. But he needs to not let anger into the mix. Anger is never to be part of play, or disaplin, or punishment when that happens the Master isn't thinking he is reacting, and when doing anything that can harm a slave you need to be thinking. A Master always keeps his slaves safty first, everything else second, and that includes hes and the slaves pleasher, and pain. Once is a accedent twice is abuse. He may not have ment it and let himself go to far or he got away from him self,that is why once is a accedent. Keep it safe, and sane, and consentual and even the puishment will be pleasher to both of you.