Hey ! Hired daughter to remove wallpaper from bathroom walls - the walls were left gouged and the paper from the drywall is torn out all over the place. The damage is everywhere. The wife wants to paint the walls, but being a autobody man I know the walls need to be repaired before we can paint. How does one go about repairing this type of damage without replacing the drywall ? HELP !!! Thanx in advance. John.