When you live in a big family, the odds of running into a brother is quite high. In poor Typhoon’s case, we mean that quite literally.
Alone time is a precious commodity when you live in a large family of siblings. Even when you find you have a moment without anyone around, you know the time is short before the noise grows.
Thus the way it is for Typhoon. Mr. Touch-Me-Not allows only one other close to him, but even he knows that running into your brother can cramp your style.