Parents of students at a suburban Chicago high school are concerned about the possible health risks presented by a new policy penalizing students for taking more than three trips to the bathroom per semester. An optional policy at Evergreen Park High School enforced by some teachers limits students to three bathroom visits during class per semester, after which class time must be made up after school, the Chicago Sun-Times reports. For students who have after-school obligations that would interfere with make-up class time, “holding it” may be their only option. EPHS Principal Bill Sanderson told NBC Chicago that the policy is to prevent students from using restroom visits as an excuse to miss class, and ensure that students who may miss valuable class time during a bathroom break have a built-in provision to make up the work.