Police in Pennsylvania have arrested two men for stealing a meatball sandwich from a 13-year-old boy at gunpoint.The duo threatened the teenager with a gun and told him to empty his pockets, reports the Philadelphia Inquirer.One of the robbers, a 21-year-old, pointed his gun at the boy and said: "Whatever you do, don't move. If you do anything, I'll cap you," according to court documents.They took his meatball sandwich - but did not bother with his mobile phone - before fleeing in a nearby car.The teen promptly used his phone to call 911 and police were able to quickly arrest the sandwich-robbers.Police say they recovered a gun and the sandwich.