Has anyone ever tried to make biodiesel from human fat?

o,k. we make fuel out of grease,, so why cant we lipo fat and turn it to bio diesel,,it has glycerine in it and america is now the second fattest nation in the world, way to go austrailia whoo hoo,, and this would ure that we would gain independance from forieghn oil,, so go ahead eat the wendy's baconater,,, i'm going to figure out how to turn this rug doctor into a lipo machine and use the fat to run my bio diesel monster truck and all you guys that laugh at me is not going to get to ride it,,, my question is has this been tried? and if it's possible how awesome would your love life be if you were thin and saving gas money by burning fat twice,, haha?