My girlfriends in the neighborhood know that I'm pretty obsessive about Christian's CI at the park. We have learned to take it off before he goes on any plastic slides. He's been very helpful "handing" it to me (sometimes he throws it at me), when I ask him to take it off before he takes a turn going down. My friends just laugh with me (ok at me) as I scold my little guy for not sharing the slides or taking turns...and remind me "Um, Tina, you're holding his CI. He can't hear you".