Active sitting gone awry

Today at work I interrupted Allie while she was VERY actively sitting by kicking the yoga ball out from underneath her. I'm not really sure why I did it. I know I when the thought entered my mind to tap the ball with the tip of my shoe I didn't picture clearly what reaction that would cause. I happened to tap it when she was mid-air, which moved the ball to the left. She came down, and nicked the side of the ball with her left hip- which sent her whole body flying immediately to the right about 2 feet where she crashed into my cubical wall and crumpled to the floor. Of course, this also happened at the end of the hallway, right as a bunch of missionaries and staff where coming out of the nearby conference room and saw the whole thing. Allie suffered only a minor cubical burn (similar to the carpet burn) on her knee which was the main body part that hit the wall. I fortunately was fine and for some reason, Allie forgave me and we're still friends. As far as we know we're also still both employed, which is key in a situation when you're playing with a large yoga ball while you're on the clock.