Was just about to bring that up... But to be honest it depends on your age. When you are in the unimportant years at school its meehhh. But when you get older you shouldn't be playing Graal at school. Use your free time to read over notes and **** and be prepared for your next lesson or just talk to friends or ****. You got lots of time to play Graal when you're home. Graal isn't going anywhere so just save it for later ;)