Why do you have such an idea? Are you a big boss, or are you rich, or are you good, so they can cheat you with your signature? So, of course, you can't just sign a blank sheet of paper. If it weren't for a contract or something, you wouldn't have to do that. After all, you can remove your signature, tear it off, and easily remove it. Just let them get it. Don't just sign others' names. I think it's responsible for myself and protecting myself. After all, people can't think about it all day. It is impossible to be troubled by these situations, and it will be very tiring and harmful, and the effect will be poor.