3 Protective siblings.
5 OMG, not another one!
6 Basic household objects can, and will, be used as weapons of war.
7 It's basically never worth doing your hair because a noogie can come at any time.
8 No matter how successful you are in life, he will always be sure to remind you that he came first.
9 Every once in a while, he will feel the need to be the absolute center of attention.
10 If anyone ever tries to harm you, you can be guaranteed that he will be the first to step in on your behalf.