Weird news - Family defy no-smoking warnings on plane, forced to get off

There was a time when smoking was considered fashionable, and there were very few restrictions on smoking. It was only in the past few decades that the health problems of smoking became clear, and the restrictions on smoking started growing. Of particular concern was the impact of smoking on those who did not smoke themselves, this being called as 'second hand smoking', and more restrictions implemented to ensure that people who did not smoke did not get affected by those who did so. As a result, there were more laws passed to ensure that if people did smoke, they were prevented from doing so in a way that the smoke would impact others; one of these was about ensuring that smoking is totally banned on planes.
Given the closed environment of an aircraft, there was no way to ensure second hand smoking prevention, unless smoking was totally banned on a flight. Now it is strictly enforced, and there are warning messages that come on in aircraft, calling out that people cannot even smoke in the bathrooms (and in fact, there would be smoke detectors meant to prevent people from smoking there). Combine this with the fact that in this age of aircraft security, any unrest or disturbance on a plane is treated as a security problem and if the situation gets out of hand, then the plane can even land and the concerned people handed over to security (link to news article):

A family of three -- a father, a mother, and a son -- were arrested after they refused to stop smoking inside a plane, forcing the aircraft to land in the island nation of Bermuda. The flight from Halifax in Canada to the Dominican Republic landed in Bermuda, and police boarded the plane and arrested the three passengers, the Daily Mail reported.

Such a diversion can be pretty bad for the schedule of everyone concerned, since this causes delay in the transit of everyone, and if the time takes longer, then people may even need to stay overnight.