Rin watched him practice until she thought he was mediocre enough, by then three hours had passed. Take a break while I get what we need for blood control. " Rin said going to the side and grabbing two sharp knives and heading to the middle of the room where there wasn't any workout equipment. 
Rin sat down setting down the knives, one in front of her and one in front of where he would sit. She patiently waited for him but if he took much longer she would force him to come over here.