my bro purchased his own copy of minecraft for his own computer 2 weeks ago. since then he has been absolutely fascinated with the whole herobrine story. he pretty much played for 1 day and spent the rest of the time watching vids, looking at pics and reading articles about herobrine. at this point i already had a plan for a great prank. luckily he backs up all his saves on his dropbox account, witch (long story short) i have the password for. I downloaded his save and opened it on my computer. i gave myself some tools and blocks and walked a ways out and built a shrine. i walked a ways out again and build another, ect, ect. after an hour i had completely surrounded his wooden house with stone shrines, but they were just out of viewing distance, so he could not see them from his windows. Every single shrine had a sign inside it, each sign had a single arrow pointing to a single shrine, behind his base. all it says in there is his first name. i uploaded the save to his dropbox, overwriting the old one and completing part 1 of my plan. late that night i went downstairs and got into his computer (he uses the same passwords for stuff luckily) and moved the original save from his computer onto my memory stick. a few nights pass before he decides to play minecraft again, it's about midnight when he starts playing (at this point all i can only assume as i heard his laptop running) and about 1:20 he stops playing and goes to bed. after he is asleep i sneak back into his room and take his laptop. i replaced the world i had changed with the default and placed his laptop back.
He hasn't played again since i changed his world back, what should i do when he sees the shrines are gone?