To answer your question, no I haven't.
But, to also offer some perhaps helpful advice...are you aware that you can unpublish a story any time you like, (just hit the 'unpublish now' button on the top panel in edit mode). It instantly becomes invisible to anyone but you, but remains in your hub list under 'my account'. Should you later regret hiding it and decide you want to re-publish, just go back to edit mode, and hit 'publish'.
Alternatively, if you decide you really don't want to keep the story up, don't delete it until you've made sure you don't lose all your hard work; to do that, hit the 'print' button below your hub, and select 'pdf' in the dialog panel, that'll produce a copy of the piece that you can "save as" on your hard drive. No printing involved; and no loss of work.
I try and keep a copy of everything I write - incl work in progess, or an idea that I can't quite get to work, it's surprising how often you can revisit stuff, and on a different day, get a better result. And, avoid regret at hitting the delete button too soon.