I'd not be that sure. My son (then 5 or 6 years old) managed to insert a CD exactly into the gap between two devices on a tower. He insisted on having the CD in

I'd not be that sure. My son (then 5 or 6 years old) managed to insert a CD exactly into the gap between two devices on a tower. He insisted on having the CD inserted although the CD player apparently was empty. It took me a while to figure this one out.