the only way you could get charged is if its past self defense, dude breaks in, one quick hit to the head with the back, knock him out, and back off...if he gets up or comes towards you hit him again...until he stops attacking or ius unable to try to attack you its self defense...people get in trouble by going to far...one punch or kick while the intruders on the ground bam you get charged....at least thats how i understand the law