Sibling Rivalry Analyst T-Shirts

"And then, as soon as I had carved out my niche, they went and had another kid."

'I am so proud: My kids are finally fighting all the time!'

'Meet my new little brother. The future 'spoiled little brat'.'

"Why do you decide everything? Why were you born first? Who made that ruling? And where do I file my appeal?"

Polygamists' Picnic

"He's my smart-aleck twin."

"I'm an oldest child trapped in the body of a middle child."

"Good work Tim, you snatch it all: none of this sharing with your brother nonsense..."

"At home there's a fish, a cat, a dog, me, and a big sister."

It's my biggest project - a database of all my sister's boyfriends.

"We tried to play nicely, but frankly it's not as much fun as tormenting each other."

Help!I am being forced to eat vegetables

The noise from the basement was probably nothing – but if it was, she was a sacrifice her older brothers were willing to make.

"Act your birth order!"

LEMONADE 50 CENTS, 'Sorry, cash only -- we don't accept little brothers.'

'Mum, she pulled my mane!'

"You can't live in our basement. Your brother beat you to it."

'At first I wanted a brother, but I've changed my mind... I want a puppy now.'

'I suppose this puts my new bike on the back burner?'

'Does this mean I have to share my pocket money?'

'MOM! -- Samantha called me names in her diary!'

'How do you expect them to treat you in a mature way with that thing in your mouth?'

'Stop crying or Mom will think we're not having fun!'

'Mom! - Jeffrey just said a DADDY word!!'

"How many times do I have to tell you to quit going through your little brother!"

"If you have one child you are a parent but if you have two, you are a referee!"

'Take it from someone with experience. . . you can't go throwing tantrums until you've at least tossed a few.'

'No hair or teeth, can't walk or talk -- he's kind of a starter kit.'

"Meet your new baby brother! We decided to upgrade."

'The only reason I take him with me wherever I go, is because the thought of kissing him goodbye makes me feel sick!'

"An area where a specific species lives. . . like my older sister in the bathroom."

"I'm wearing new cologne. I hope Smiley is able to control herself around me today."

"I was raised as an only child, which really annoyed all my brothers and sisters."

Mom! Billy's censoring me!