When your mum calls you all the other names in the family before getting yours right.
When you say you're getting in the shower but your sibling's like: "Nope, I'm showering first!"
When you have to get into a full-on war for the front seat every single car journey.
Except when you both have to sit in the back, and then there's this problem.
When you have to share some food.
Wit Studio / Via Twitter: @Zuccros
