The process of stacking desks and chairs, while helpful, requires time, labor, and mobility. Considering the safety of all students in grades K-12, it may be difficult for younger students to assist. Additionally, the desks and chairs do not provide any resistance to unwanted opening of the door itself as most classroom doors open outward into the hall. Bolo Stick has a one-step activation—insert the round peg into the round hole—and the door is secured against forces in excess of 2 tons. Bolo Stick can be deployed and disengaged by students of almost any age.