Beat your little brother back but don’t leave any marks. You shouldn’t have to hit him very hard just enough to get the message through that he doesn’t get his way with anything unless you tell him so. Tell him if he tells your parents, you’re going to beat his a** again and burn (insert name of one of his favorite toys). He’ll beg you not to do it, if he’s smart. You gotta fight with fire with these little jerks. You’re older and smarter than he is and he’s a kid who is unable to regulate his emotions. While he may be unpredictable, this puts him at a disadvantage and gives you an upper hand. Little brothers learn to fear their older siblings if you’re cold and uncaring one minute and warm and nurturing the next and so on and so forth. It confuses and might even shocks the hell out of them and makes them submissive after a time and with practice you’ll become an old pro at it, and who knows, little brother might even start defending you against your parents. Little jerks need guidance and strict boundaries if they are to flourish in a cruel and unforgiving world and if your parents aren’t fit to give little brother the discipline he so badly needs then it’s up to someone else. Could be fun if you know how to play it.