Cool activity for self defenses

In black belt class we ended up in groups of three doing self defenses. If you were in the middle you were defending.  Your partners were attacking two different self defenses, although not at the same time.  It was a good mental exercise and made you really think about what to do next.  I wish we had gotten to do weapons tonight, but not every night is a weapon class (unfortunately).  I have the next few moves of my creative form down, but I really need to practice outside because I keep hitting the ceiling fan twirling the staff.  I'm going to accidentally break a light bulb and it's hard practicing in the dark when you are trying to make up a new form.