We've heard of bans on fidget spinne rs, Pok émon cards and electronics, but get this: a Connecticut school district just banned parents from showing up to have lunch with their kids. The school district argues that the growing number of lunchtime visits is a security issue and has become disruptive. Some parents claim they stop by to help their kids -- by opening milk cartons, assisting with social conflicts, or just to sneak in a little one-on-one time.