40 years ago everyone would think it is a bad joke about non-smoking flights.
30 years ago everyone would think is is a bad joke about meal for purschase.
...
year 2015 - everyone claims that charge used to be only 1 EUR when Ryanair first introduced pay toilets in 2010, now BA is charging 5 quid on shorthaul and 10 quid on longhaul...
year 2020 - now you can use your Frequent Flyer miles to pay for toilet on all OneWorld alliance flights!
