Seems most of these problems were probably executed by children, I can relate having a 4 and 7 yr. old.!
Yes, this brings back bad memories. Mostly the one with the CD sticking out of the crack below the CD drive. Several years ago, when my son was old enough to watch dad use the computer, but too young to communicate verbly....
I just put my son to bed, and headed down to the computer room to play some new games I just got for Christmas. I opened the CD case, and it was empty. I opened another, nothing, and another, empty. This can only mean one thing, my son was playing with them. I went up and brought my son to the computer room.
"Tell Daddy where you put the shiney disks?" I asked him. He squatted down and looked under the desk. I watched is eyes, then got on my hands and knees and looked under the desk. I didn't find anything.
I asked again, "Tell Daddy where the shiney diskes are?" This time he pointed to the computer. Ok, maybe he is understanding what I am looking for. I said "Yes, the disks that go in the computer." He points to the computer again.
After several more minutes of frustration, I put him back to bed. Looking at my computer, trying to think like a small child, I saw the edge of a CD in the crack under the drive. I opened the case. Inside the case I found the several scratched up CDs stacked neatly stacked up under the CD drive. Yes, he pushed them all in the crack under the drive.
He is now 10, and he knows several of the hardware and software modifications shown on that web site

Gunner