This all presumes I don't "accidentally" run over it with my car, or arrange for a safe to inexplicably fall on it. Had you asked me yesterday morning, I would have been all for it.
Brett
1. A strong draft from the fan blowing to dry the paint dislodges the foam cooler
2. No longer wedged in place the back pack tumbles to the floor
3. More Item cascade down as each item dislodges the next
4. With nothing to prop them against the shelf the ladders fall to the right
5. The box no longer propped up on the shelf Follows everything else to the ground
6. Now that the hefty box is not longer acting as a backstop, all of the items on the top shelf destabilize
7. As the items on the top shelf try to find a new equilibrium the center of gravity of the rubbermaid shelf changes and causes the shelf to topple over crushing the airplane.

LoL I could not resist
