[quote name='discreet' timestamp='1390642972' post='2347784']
DFA switch, DFA button: A control, button or switch that doesn't actually do anything that gets pressed or turned in response to a request for a change in sound or tone from someone who doesn't know what the hell they're talking about. Always gets the response, 'that's much better, thanks'.
DFA = Does F*ck All.
[/quote]
HAHAHA!! Brilliant