I'm not defending anyone here, but your friend being warned for kissing his wife "on the forehead" could be a one-off case. I have kissed my wife and mother every time we're at the airport departures in front of the cops and they've said nothing. Maybe I'm just lucky or maybe it's generally acceptable at the airport, I don't know.

I don't frequent bars like the Sheraton and Qube, so I really don't know what goes on there, but from what you say, I'd rather stick to Belgian Cafe or the Cellars, they have a much better crowd :-)