People need to learn how to say no. It's important and even therapeutic. Having a conversation where someone asks you something and you respond no, and your reasoning is a GOOD conversation. You don't have to say yes to any dumb offer that life throws at you. You are allowed and entitled to say no, even without giving an explanation. A question isn't a demand. It is a possibility that you are the one in charge to determine if you want to accept or deny. Nobody can force you to accept. You have every single right to simply say NO.
So, next time you get hit with some weird request that you hate and want to deny, do it! Nobody can force you to do ANYTHING. Say no, own your response, and be free from what other people dictate for your life. Be the one who handles the direction of your life. Choose wisely, however you want. Don't be like the people in the story below. Don't doubt. Just say what you really think about the offering someone just offered you. Say that you do not want to do it, and that's it. Once you do, you will realize what it is to be free. And also how saying no is not really a big deal. You are entitled to that!