In the new comedy Fist Fight, a just-okay sketch idea that somehow bumbled its way into feature production, Ice Cube plays Mr. Strickland, a history teacher at a high school that’s going down the tubes. On the last day of the year the annual senior pranks are in full flow, the administration is going through payroll with butcher knives and he’s stuck trying to teach kids about the Civil War with a crappy VHS player. Finally pushed over the edge, Strickland goes for a student’s desk with a fireaxe and lands himself in front of the harried, impatient principal (Breaking…