The Lucky Saggitaruis ?

My friend happened to be saggitaruis , and it's like He is supposed to be "lucky" ,lol ..but he's not . What is it with saggitarius and tough/bad luck ? , it's like they say that they are supposed to be lucky because of thier nature , (bubbly and happy and sociable ) , but ever since he was young he was used , a bit abused , backstabbed , frontstabbed , if there is such a word ,lol . I also read that saggitaruis despite being tough , people try to hurt them , and that is what happened and is happening to him . I think Geminis are lucky , because of thier malice and wickied nature ..they can get away with things , and well gemins and saggitaruis are a good match (what I have heard) but also it can be hell .Angelina jolie and Brad pitt are the best example !