Welcome back ladies and gentlemen of the internet. In family affairs, it's not always easy to keep your mouth shut. You go in and out of these feelings and thoughts, and sometimes it just builds until it explodes. Of course, it's not always the best course of action to let things bottle, but if they do, at least stand behind what you said. Just remember, it's better to air grievances privately, rather than publicly.
In this Reddit thread, it centers around a family at dinner. The original poster (OP) is a woman who sees her sister married to a stand-up guy. She claims her brother-in-law does everything; he takes care of the home, chores, son, and he works, while her sister apparently lays around all day watching TV. But it doesn't end there. OP also says that her sister is constantly making fun of her husband, mocking him. Push comes to shove and OP breaks down at a family dinner, embarrassing herself, her sister, and her BIL.