Wasn't sure where to put this one. It's almost a Life in Germany topic as most floors here seem to be dangerously uneven. Then again, it could be a Family Life topic as most adults aren't likely to try and climb up book shelves and have them topple over in the process. Then again, I hardly ever have kids in my living room (thank heaven) so it doesn't quite fit there.
Anyhoo. We just bought an a$$load of bookshelves (IKEA Billy) and we have a very uneven floor. My worry is that unlike our wardrobes, which are heavy enough that they'd be tough to bring down, the bookshelves aren't quite so sturdy. I'm going to use carboard or plywood or whatever to make sure they stand up straight, but is that enough? If I were a four year-old, there'd be little to stop me from climbing up the shelves and bringing the whole thing down. They come with brackets to secure them to the wall, but I trust them about as much as the current US administration.
Thoughts? Anyone ever cripple a child with a book shelf or have one fall down on a drunk who used them as a stepladder?