Rules of the Drill:
You start seated, back against the wall. Two attackers try to crush you and keep you from moving off the wall, and away from them. You try to get up and away. No striking allowed in this one, though we do the same with gloves on, or one attacker gloved and hitting and the other trying to hold you down.
For time. Make it realistic, like 20 or 30 seconds.
This drill is easily integrated into mainstream jujitsu practice, as of course, School of Budo did here.