Well, That Sucks
Sometime since the last time I looked in there, the Master Maze shelves in my front closet collapsed.

It looks like the damage was minimal (or zero); there are a couple gouges in the wall, and the shelves look a bit bent, but the Master Maze stuff is mostly packaged very securely and should be fine. Almost none of the loose pieces even fell off the shelves, which fell more or less as unit.

The shelving is a top track/vertical rail system (like the Container Store's Elfa brand). At first glance, it looks like the vertical rails walked themselves off the top track and then dropped the five inches or so to the ground. No obvious damage to the top track, which appears as firmly attached as before. The vertical rails are held on only by gravity; they don't even have a notch to keep them in place. I'll have to think about the balance of forces, but there's no piece of the apparatus that keeps the rails from walking forward. The design contemplates the top track as the pivot point, but if things are balanced so you can pivot against the bottom of the rail instead of the top, walking forward is almost inevitable.

There are things to install where the front edge of the shelves meet the walls, and those should suffice to stop the walking problem. Still, not the funnest thing to discover in one's closet.