At some point, we've all done it. Sure, we don't really need a restroom break.

But this class/meeting/seminar/date is so boring, that a quick trip to the restroom seems like the only way to make it through.

It's a ploy used by high school students everywhere. While Mrs. Math Teacher takes a break from the chalkboard, Bored Student raises his or her hand and asks to go to the restroom.

Teachers can't say no when you gotta go, right?

Hold your water. At one Illinois high school, too many bathroom breaks can equal detention after school.

Bill Sanderson, principal at Evergreen Park High School, told the Chicago Sun-Times said the policy means students won't miss valuable class time, and won't use the restroom as a reason to skip class. Students at the suburban Chicago school are penalized if they take more than three bathroom trips in one class per semester.

With block scheduling, classes last 83 minutes, Sanderson told the paper. During classes, the only restrooms that are open are near the main office on the first floor because of security, he said.

But some parents aren't happy with the policy, citing health concerns with "holding it," according to the report. Underlying health conditions, such as a urinary tract infection, can increase a student's need to use the restroom, parent Linda Gigliello told the Sun-Times.

“Tough to have a kid hold it if there’s an underlying urinary problem," Evergreen Park urologist Dr. David Zumerchik told the newspaper.

Zumerchik said students should not be afraid of using the restroom, even if means having to stay after school.