While David looked like he was paying to what the teacher was saying, in reality he was lost in his thoughts. As usual when he was bored he fantasized about using his illusions to amaze and impress everyone. Even without his best work he could no doubt easily become the most popular guy in school or even the city. But he understood why his father didn't allow him to use his powers in the open. After all he had no desire to have an involuntary lobotomy, though he did wonder why his father seemed more concerned about the mafia than anything else. Also in reality he would get sick of all the attention pretty quickly no doubt, but hey a guy can dream, right. Seeing as the teacher seemed to be focused on the blackboard David decided to look around the class and noticed he wasn't the only student not paying attention. The boy a few seats ahead of him Cyrus or something and some long haired girl in the middle were both looking out the windows. Seeing as they would never know it was him, David couldn't help but mess with them. He only very rarely used his powers to play pranks like that though. After looking out the window himself for a while, he decided to use the falling leafs.After focusing a bit he made it look like the leafs slowly turned into blood while still midair.Of course he was smart enough to make the illusion last only a few seconds.That way neither of them would even be sure if they really saw it or if their minds played tricks on them.