The biggest thing that made this night diferent was our focus on atemi. For those ofyou not familiar with aikido(or japanese) its basically strikes. It can also be a feint. Sometimes pretending to hit someone is enough to offbalance them.
Sensei spoke of actual hits. He also had us be mindful of what we are trying to do with a strike. Do you want blood.... no blood, broken nose... hurt knee or leg.
He also had us doing some other strikes that are good to learn so we can practice defending against them.
Day After Pain Index