Worst case circumstance? It doesn’t go well and you have to put up new drywall up or use some kind of planking/panelling to deal with up the mess – In any case, at the very least you won’t have popcorn anymore! (go through a lot more listed here re: http://popcornremovalcost04714.blogofoto.com/17992653/what-does-popcorn-ceiling-removal-colorado-springs-mean