How can i injure my knee/break my leg rollerskating?

i am just SICK of all the rip offs toward me regarding my knee. quick summary of my problems: considerable constant pain, turned in femur, turned out tibia, rip off pt and orthopedic surgeon dude. im not going back until may. we have skating in gym and i think if i injure myself skating, it wount seem too intentional, and medical personel will be opt to treat me. Dont call me a sick duranged person or tell me to call the mental hospital. I HAVE A REASONBLE REASON! PLEASE HELP ME GET HELP!