With certain students who always go full force in sparring? Since I'm a 2nd degree and they are first degrees I typically ignore it. The hard hitting I don't mind, it's more the lack of control. Despite the teacher saying a certain round is light contact, so we can work on new techniques, they'll go as hard as possible which defeats the purpose of that round! Today though was the day that bothered me the most. We were doing regular sparring, so take downs and controlled submissions allowed. My partner slammed my head in the ground (thank fully on a mat) so hard I'm pretty sure I have a concussion (dizzy, off balance, in a fog for about 30-60 min afterwards). Not really necessary IMO. We shouldn't be looking to beat up each other, we should be working with each other. Just needed to vent.