stansted
I've been working at Stansted for over a year on the security gates and scanners and never had to ask a pilot or f/o to remove a belt or shoes. the worst we do is ask to remove a jacket and cap. If of course you havn't the sense to take out your keys and small change you will get a little more investigation.
P.S. did you tell any one about the open door or are you happy to let security lapses happen?