Just zapped myself. Seems to have worked.

And it'd be easy as heck to code this, if I knew the existing code base at all... just skip to the final upload function in client, add a lil random "coin toss" (user selects desired weight, or leaves default of 1%). Only hard part would be selecting appropriate set of seemingly random and images to substitute in. Expect one could crawl Facebook for that easily enough.

On a serious note though, I find it interesting to consider how a nonzero built in failure might actually improve a product.