Its not a matter of feeling or not. Wi-fi has been proven to interfere with emergancy landing equipment. Don't believe me? Read for yourself. http://www.zdnet.com.au/wi-fi-proven-to-interfere-with-aircraft-339311113.htm http://www.flightglobal.com/articles/2011/03/10/354179/wi-fi-interference-with-honeywell-avionics-prompts-boeing.html

Kelemvor4 is correct. I work in a hospital on server maintenance and in some areas, usually where medical equipment is used and not in patient rooms, using wifi or your phone is strictly forbidden. It interferes with the medical equipment just the same as it interferes with the landing equipment on a plane.