Friendly does not equal effective or efficient.
How many times have we read here of pax being sent to secondary for refusing to remove compliant shoes and joking with nice screeners, screeners who acknowledge that what they are doing is not efficient or effective?
I find it very difficult to "appreciate" someone doing a job that is neither efficient nor effective - rather is all for show.
http://www.helicoptermonthly.com/det...4&CategoryID=3