In Reply to: try this posted by bloodyron on Tuesday, 17. April 2007 at 15:19 Bali Time:
when building was being done on an Australian taxpayer funded upgrade several years ago, a brick wall was being built along the middle of the floor. Builders were most surprised to be told by a layperson that it would make it rather difficult for people to speak to each other. We suggested that knocking on the wall may work.
And the builders were respected and well-known in Bali too!