My siblings and I are each 4 years apart. So the span between me and my brother is 8 years but my sister is 4 years between us. We all HATED each other growing up. Now I wouldn't trade them for anything. (Just don't tell them that!) I was actually pretty happy that I didn't have to go to high school with either of them...I was the smart one and I just know they would have made me do their homework. PLUS I had to deal with their reputation. I had one teacher look at me and go, "Oh you're Nikki's sister?" and then she treated me terribly the rest of the year, despite the fact that my sister and I couldn't be more different.