Wallpaper
It seems like such a great design decision at the time. Then you paint over it.. Or maybe paper over it.. Then you sell the house to some guy named Emilio and laugh as you drive away.
I like wallpaper, I really do. I just don't like tar covered 1930s wallpaper that was painted over. Or horrible plate rails that aren't really plate rails (they have grooves...for you know...plates) but actually two pieces of base moulding that were tacked together and slapped up onto the wall of my dining room right at eye level such that it makes the room feel shorter than it is and makes the giant dining room windows look funny.
So I did what anyone else would do. I TORE IT ALL OUT IN A FIT OF RAGE!!! Well.. what really happened was that Becky and I went to the Serv-U Locksmiths over in Springfield to get some copies of the skeleton keys we have (the only keys we have for the house) made. While there we met their "wallpaper guy" who upon learning of our desire to remove wallpaper from plaster walls informed us to go against all commonly given advice and not use wallpaper remover or water or anything like that but to instead dry scrape it with a wall stripper he had, basically a 4in razorblade on a handle).
We got home new toys in hand and this happened...