I just found out my little brother was planning on breaking my iPhone.What should I do?
Get a cheap used iphone and put it in your current case. Leave and set up a video camera and catch him doing it, then show your parents.
Have you iPhone with you 24/7!
Your parents should come in handy to have a little chat with your brother...
teach him a lesson
Keep your iPhone with where ever you go! If you can't bring it somewhere, have a hiding place he can't reach. Also tell your parents.