The tender sensibilities of Japanese maidens (CI Nos 900, 904) are meat and drink to Japanese manufacturers who rush to exploit them at exorbitant prices, and the latest electronic gizmo to hit the spot was actually developed with a view to saving water: seems that when Ms Nippon visits the smallest room, she immediately flushes the loo so as to mask any embarrassing noise as she goes about her business, so now you can invest in a delightful device that electronically generates the sound of rushing water for as long as the door is locked.