they are only different because of the grammar, you can structure your sentences so that they all have the same (similar) meaning: If I were you, I wouldn't risk it, your boss won't be happy If you do that, you run the risk of being fired Are you sure you wanna take your chances with the boss? These sentences, though said in different ways, have the same meaning. Choose which ever one you think feels more comfortable "I'll take my chances" is a good reply to all of the above.