In my experience nothing beats mean reversion bets in specialty retail as a reliable source of fancy wallpaper. More recently the container shipping companies have shown a way to prolong the agony-- through an endless parade of reverse splits. When my last share goes fractional all I'll have gotten back is the cumulative cash-in-lieu.
Perhaps not quite as painful were those Chinese reverse mergers that tipped net-net screens the past few years. They just kind of faded away as their volumes dried up, sort of like the old