Worst situation scenario? It doesn’t go perfectly and you've got to put up new drywall up or use some kind of planking/panelling to cover up the mess – In any event, at the very least you gained’t have popcorn any more! (read much more here re: drywall set up) http://popcornremovalcost04714.blogofoto.com/17992653/what-does-popcorn-ceiling-removal-colorado-springs-mean