i suck at hiding things and he is an expert at finding things.
ya king of the bill you and i are in the same position, i told my parents that my brother stole me ipod (which he later broke)
when they asked him if he stole it he said "i didnt steal it" then said "well, he said he didnt do it." and that was it
Hide it with some extremely disgusting, disturbing pictures, of the sort that makes one sick to one's stomach. If he tells your parents you can say "First of all, why the hell are you digging through my <hiding place>. Second of all, I put those in there with my <stolen valuable>, because I knew you'd try to steal it
again. You were obviously trying to steal my <valuable>. Again."
And if he doesn't tell them, great job: You gave him a reason to stop rooting through your stuff. Keep adding new images until he cracks.
I'm considerably better at hiding things, I just have too much stuff to reliably hide.
I used to suck but then I got caught with my GBA in my room a few too many times :cookiemonster:
My hiding places include:
In the middle of a sleeping bag rolled up in my closet since forever ago, in the middle of a notebook which has had the center of each page cut out, underneath an enormous stack of paper cuts waiting to happen...
But seriously if you know something he's afraid to get near or touch (or wouldn't want to) that you're fine with, use it to guard your valuables. I might suggest a pet tarantula.
Of course, it could be that your parents favor your brother and refuse to believe their "perfect little angel" could never do ANYTHING wrong, in which case, my sincerest condolences.