I never thought I would be advocating the introduction of net curtains to what I consider to be my designer abode but .....   I tried the official route and failed miserably to obtain a satisfactory restraint for all the bits and bobs in the bookshelf and galley so this is my answer to a 'knockdown'.   Hopefully we will never have to report whether the system works!!  It's yet another case of  'better safe than sorry'!