For years, I used a baby gate to keep the two older cats from attacking the two younger ones. Now that I'm down to one older cat, the gate is rarely used, but it is still leaning against the wall. This morning, Octavia and Damiri were playing around it; Octavia would walk behind and poke at Damiri through the mesh, while Damiri investigated the locking mechanism and swatted at her sister.
Damiri started climbing up the gate. The inevitable happened. With a mighty crash, the gate fell on top of Damiri (and Octavia, who chose the wrong moment to walk around to Damiri's side). I didn't see the kittens again this morning, which is just as well since that way they didn't hear me snickering at them.