Perspective, as I have mentioned here numerous times, is a powerful thing.
Let's take, for example, the story of a couple whose relationship may have needed some spicing up. They decided that perhaps a way to bring new life to their bond was to engage in more than just a little necking on a cross-country flight. So prevalent is this notion that it has a name: The Mile High Club. It should be noted here for the sake of accuracy that your standard airliner cruises at a height substantially less than one mile above the earth.
It might also be noted here that engaging in extensive canoodling in a public place is generally most often the kind of hijinks you find in your racier television shows and movies. The shock and dismay experienced by even your casual onlooker would hardly prove to be worth the embarrassment for all parties involved.
Which does not mean that such things do not happen in real life. Take the case of Christopher Arnold and Trista Reilly who decided, on a flight from New York to Sarasota, to give into temptation and enjoy the way-too-friendly skies. As is so often the case, several children and their mother observed the goings-on and reported them to the authorities. Beyond the story these two have to tell they will be facing charges of lewd and lascivious exhibition.
Now the perspective part: It's that in the presence of a minor thing that makes things, if you'll pardon the expression, sticky. Now we have ourselves a very unpleasant reckoning. It is not unlike the moment where some guy follows a woman into the dressing room at some posh establishment and their interaction turns out to be less than consensual. Or having older men slavering after girls younger than the age of legal consent. These are crimes as well, and the perpetrators should be arrested and sent to jail.
Or at least, as was the case for the Coldplay Cam Canoodlers, they could lose their jobs. Like, let's say, if you were The President Of The United States.