Is there any evidence in the UK of contract ground handling staff denying boarding to anyone under suspicion of intoxication or antisocial behaviour? They seem very good at tagging laptop and handbags to be put under the seat while letting outsized looking bags reach the cabin so the crew can argue with the pax onboard when there's no room in the overhead bins etc. I know what the guidance was for unruly or disruptive behaviour at the gate when my airline employed our own check-in/gate staff but I imagine there may be more caution and restraint exercised by contract staff these days. I may be completely wrong but I do sense a lack of engagement from most at UK (and other) airports.