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Air Conditioning? Oh, you mean opening the windows, right?
When I lived in Italy, Enel (the electric utility) had three different tiers for electric bills. I forget what the thresholds were (it's been 14 years), but it went from very reasonable to OMG! high depending upon how much electricity you burnt during the billing cycle. Sort of like our progressive tax system...but based upon kilowatt hours rather than income.
If he starts scheduling the Vatican tennis courts, then we should start to worry.