what's on your mind?

Everyone says I'm a diplomatic person, but then every once in a while I say something so blunt that it upsets someone or the other. Does that happen to you too? I hate to hurt people on purpose, just to make them feel bad, but sometimes what one thinks is ok to say, the other person might take offense and get hurt. Oh well, it has to happen once in a while. After all, I get hurt by what people say too. That say, I don't wear my heart on my sleeve, or emotions or feelings like people who wear customized t-shirts to say their mind.