Kids & My stairs

I have a set of stairs outside my office. In fact the way the stairs are situated, the handrail is the wall below my office up to my office and, I have a window looking over this (old bottling company). Kids love my stairs. LOVE THEM! And for the most part I don't mind, I like kids. I get a little kick when they see the open door at the top of the stairs and poke their heads in and get startled to see a person in the office. What I don't like are kids who are running up and down and up and down and up and down and making a general nuisance of themselves. Want to explore the stairs once, fine. Want to run up and down them while mommy dearest or daddy darling is in hell line for financial aid office or bookstore return line, not so fine. I might trip you, just for the fun.