It's never easy growing up with a sibling, especially one that doesn't understand you. My brother was the type of kid that had the street smarts. The book smarts never came naturally to him. He also had the creative gift of bs; that's to say that if you were to tell him the sky was blue, he'd find a couple of different ways to convince you that it was actually light purple.
Anyhow, if you were to argue with him, he'd either argue back for much longer than you intended, or he'd get physical and do his best to 'convince' you otherwise.
So, let's consider the type of person we're dealing with for a moment, shall we? With the particular ingredients we've just discussed, you could sum this up by assuming that you have a stubborn, under-achieving physically surpassed behemoth on your hands. But, let's take this back to a slightly more realistic setting. You're thirteen. He's fourteen. Let's not pull any punches, you are, for all intents and purposes, a geek. He's bigger, he's older, he incites anger much quicker than you.
Stage set. Check. Ages and dispositions set. Check.
The parents haven't come home from work yet. It's 3:30pm, school is over. You and he have just walked home from school. Some petty argument has been brewing for the last 20 minutes. You get inside the house. He tells you you're wrong for the 10th time, you disagree. He tells you to shut up or he'll punch you in the face. You, being nearly as stubborn as he is continue on...
The wall is hollow. The hand pushing you through it becomes herculean and nothing could equate to the force used to hurl you through space. You land. There's a crater in the wall. First reaction?