Ora et Labora
Do I still pay a building's cost if I place a clergyman but do not use its function?
No. A December 2011 publisher reply said costs such as the Calefactory's coin or the wine/whiskey of the Palace and Grand Manor are owed even if you skip the action, but the publisher reversed this in January 2012: you may enter a building, refuse the action and pay nothing, and the Calefactory glossary line is a joke.