How do you avoid being double-crossed in life, or stop letting people walk all over you? I want to abstain from the movie methods. I watch all these movies and shows and shit, where they use violence. Though, I feel like that's not very logical, and there are other ways to go about it, yet I don't really know what. Any suggestions? I probably won't ever encounter a situation like this in my lifetime, so I won't have to worry, anyway. It would be good to know, though.