A Pennsylvania high school student has been suspended for what his attorney calls “doing the right thing”—handing in a pocket knife that he accidentally brought to a football game. … (David) Schaffner (III, 16,) was asked to leave the game and on Monday was handed a 10-day out-of-school suspension by the Fox Chapel Area school district. The district’s parent-student handbook says students who bring weapons to school or school-related events—including knives and firearms—can be expelled for a year, Triblive.com reports. …