It could only be the ghastly dysfunctional socialist utopia of Venezuela:
We're used to a seemingly endless range of taxes and surcharges when we fly - passenger taxes, departure taxes, fuel levies. But Maiquetia International Airport in Caracas has taken this a step further - passengers flying out now have to pay 127 bolivars tax (£12; $20) for the air they breathe.
It seems the airport installed a new system to 'purify' the air-conditioning unit - the tax is to pay for it. Or so they say except, as one radio presenter observed:
"Could you explain to me the ozone thing in Maiquetia? The toilets don't have water, the air-con is broken, there are stray dogs inside the airport, but there's ozone?"