Using Full Force when Sparring

By people who aren't mean, aggressive, or show-offy. How to handle it? Be a wimp and ask them to tone it down? I have got to resume lifting weights. Even when blocking during prearranged sparring, (which is supposed to be a strike, but gee) this girl was coming at me before I would come at her. I am definitely wearing pads next time. Wearing pads and staying the heck away.