Exit students in our school

In our school we have these students which are not just any regular students, they’re exit students. Every year teachers choose some students from our school to be exit students. It’s optional, you don’t have to participate in it if you don’t want to. On every break, 2 or 3 students walk around the school and tell people to go outside or they’ll get their names on a list and get detention, because in our school breaks must be spent outdoors, unless its raining. I think teachers came up with this idea because they don’t have time to watch the corridors themselves. I like to spend breaks outside, so they’re not a problem to me, but of course there is some students that would  like to stay inside.