How can i make something bad happen to a person without them getting me in trouble?

im only in 8th grade,so think high shcool stuff. please consentrate on the question nothing like "you should just get over it" thats really dum i want pranks if you are going to say somthing stupid and goodie goodie just dont post ok i want stuff to make him miserable not to seek his reedemption (not that he would give it the jerk). thanks