Security
Re Mr Chips post,
Surely its quite simple, or at least should be, weather you are Crew, Staff, Security whatever.
There should be & needs to be common courtesy, mutual respect, tact & patience from all parties concerned when going through security. I do however appreciate that, often this is much easier said than done. A quick` good morning` from both parties before the sucurity screening takes place, would at least help to lower any tension & help you move to the aircraft feeling just that little more relaxed.
Ideal world I know folks, but it may be well worth a try, needs participation from all concerned though