After tonights game, I was wondering if I can actually use a scout to gather a tile from one citys outskirt to another city (though the city gathered from would then lose those resources). I just found it rather good that I could build a cathedral in two cities, and then gather it from one to the other, thus freeing up the other city to build something else than culture).
I can't find anything in the rules that prohibits this, but neither can I find an exact example of what happens (if the gathered city actually loses their ressources for instance).