You've Been Warned - Again

For the 'physically challenged', torque (τ) = r × F, where F is the force vector and r is the vector from the axis of rotation to the point on which the force is acting. Why is this formula so very imperative or even applicable here? Do you wish to wind up like the other twelve wretched ignoramuses who had their skulls crushed and lungs punctured? Good grief! :-O