Sometimes, we say things we absolutely shouldn't but we are human, and we just can't help ourselves. In a few of these instances, you may be able to argue your way out of trouble, but if you've hurt someone's feelings (especially those of a close family member), good luck trying to talk yourself out of it. In this story , we have a teenager whose older sister has six children. Now, six is a lot, especially if you have to frequently rely on the help of your mother and sister because of all that…