1. They will haunt you in your sleep

2. They're the clumsiest creatures on the planet

3. They're really, really greedy

4. They have terrible bathroom etiquette

5. They're actually really violent

6. They have a hard time getting along with your pets

7. They want to imprison all adults

8. They're totally ungrateful

9. They have no regard for the safety of others

10. They worship the devil

11. They practice animal cruelty

12. They have no idea how to eat properly

13. They are heavy drinkers

14. They're always stealing your clothes

15. They're basically cannibals

16. You can't take them anywhere or else they'll humiliate you

17. They have impulse control issues

18. They are always ruining your stuff

19. They get a kick out of scaring the sh*t out of you

20. They'll urinate on you and not even care

21. They have no remorse for the suffering of others