Whether you have one sibling or a dozen, you know the bond between brothers and sisters is unlike any other. You fight with them, compete with them and tattle on them, but they're your partners in crime, and you know they'll always be there for you.

Today is National Sibling Day, and to celebrate, we've rounded up five things everyone with a sibling knows to be true:

1. Your siblings keep you humble.

Adam@Home by Rob Harrell

2. They're always looking for something to use against you.

Oh, Brother! by Bob Weber Jr. and Jay Stephens

 

3. They do everything in their power to keep you on your toes.

Cul de Sac by Richard Thompson

4. They secretly love whatever perks they get for being older or younger than you.

5. Even though they'll never admit it to anyone, they're pretty proud to be your sibling.

Stone Soup by Jan Eliot