A friend of mine was merrily working his way through the turn around a few months back. He happened to glance out at the airbridge and noticed a pair of coppers. Being the nice chap he is he ventured outside to ask if he could help with anything.
Coppers then proceeded to FORCE him in to a breathalyser test in front of the boarding passengers. Of course he refused and said he'd happily comply in a private area away from the passengers. At this point he was threatened with arrest for not complying.
Turns out a few days before hand the cleaning agency contract had come to an end at it seems they had been offered a worse deal than the one they were currently on.
Bring forth disgruntled cleaners who it seems had decided to "get back" at the airline by falsely reporting "alcoholic smells" on the flight deck.
Absolutely disgusting if you ask me!
But it just goes to show you can't be too careful these days!