Stealing Souls, Satan can do it..can we? Options

I am curious, not because I am a satanist but because I really would want to do this. I always here of people (usually satanists) selling their souls or making a pact with a demon or something but is it possible for another human to infact give away their soul to another? My reasons for wanting to know your opinion are quite private but I just am wondering what you think.

(IMG:style_emoticons/default/offtopic.gif) You know I cant help to notice that you all seem to have a tendency to bring up karma over and over again throughout this post....I for one do not believe in karma, I believe that if you do something it will bring back a reaction...and the only differance is wether that action is benificial or harmful to you. Who is ignorant enough to dare to say what is bad and good in anyones eyes but their own, the US attacks Iraq because of the terrorist actions of 9/11, to them it was a good thing, it was retaliation and proving that the terroists were no match for them, but what else happened when those bombs were dropped? Millions of civilians, children, and innocent people were killed as well...though the terrorists were stopped it also killed innocent people as well good/bad...so what karma will the US get? Will they get good karma for killing the terrorists? Or bad karma for killing innocent people? lol sorry I dont buy it...I could go on but at the risk of offending any of you I'll hold my tounge.