You need to get balance in your life and straighten your spine. The petty ways and apparent acceptance by some of the "necessity" of security pettiness in no way adds to your or my aviation security. Processing 5 people in 15 mins due to pettiness shows a lack of oversight. Luckily the person causing the hold up was relieved from that duty shortly afterwards.
You seem quite prepared to accept poor customer service according to your episode at Lgw.