Why does the Roman Catholic religion have an upside down cross on the back of the popes chair?

Why is the cross upside down on the back of the popes chair? Isn't that not right? The cross should be right side up. That's disrespectful. Christians always have the cross rightside up. What is this a sign of? Why does the pope always carry around the bent cross that's all messed up. I saw a video on you tube with this in it. His chair always has the upside down cross on it. It always there with all the popes. You can see the video I saw it in on you tube. Why is there an upside down cross on popes chair that's what satan worshippers and people that go to black m have as their symbol the upside down cross. a href="http://www.youtube.com/watch?v=x-y8jF25s…" rel="nofollow"http://www.youtube.com/watch?v=x-y8jF25s…/a please watch it