I have just been asked (as a technician) to remove two WiFi systems, access points, from a network in a school as one parent has said it disturbs her child's sleep patterns. I'm assuming the child doesn't sleep in the classroom, but this parent has managed to convince other parents that WiFi is harmful hence the school's decision to abandon wireless. Even after I switched off the WiFi there were still four other network wireless points which could be accessed but this did not convince her. I pointed out the comparable strength of mobile signals, but still no good! I gave her an analogy: it's like complaining of a slight drizzle of rain while you're swimming in the ocean. No good. All major UK universities, the reading rooms in the British Museum, Heathrow air terminal, and many, many more places are covered by WiFi. What is the answer?