Forgetting the principles of all working together as " airline employees, airport staff etc etc" most airport staff don't like crew, they regard them as overpaid protected species.. however, talking specifics, if you travel on an ID ticket you are PAX, not crew. At LGW for instance when you go through normal security your picture is snatched and this is also available at the gate if they scan your passport again. It was a fact some of our off duty crew came through LGW using the crew channel, were denied boarding at the bridge by BA Staff, security was called and their passes were confiscated. They checked back through as normal pax but it took over 2 months to get the passes back. It was found in the investigation the person whom took the passes should have issued a warning to the company first and did not have the right to immediately seize the pass, but is did not alter the fact the 3 crew members could not fly for 2 months while the process was completed.
And Amsterdam? are you kidding! it's practically a strip search even if you are operating! when you go into the lanes with a boarding card you are immediately funnelled with the other pax..
On the other hand at Malpensa last week they didn't even want to see our passports as we were in uniform! the playing fields are far from level, however rules are rules..