I use this in my classroom as a visual to know who is out in the bathroom! I allow one boy and one girl to go at a time, which is why there is a girl and a boy monkey! I have pictures of all of my students on magnets and if they go to the bathroom they have to take their picture and put it either on the girl or boy monkey. Once there is a picture on either of them, no other person is allowed to go to the bathroom of the same gender unless it is an emergency! It's a great visual to see where students are at, visual for students to know if they can go to the bathroom or not, and great for emergencies as well! Enjoy!