On a Thursday night, one might check the weather forecast for their Friday excursions. The weather forecast may say 80% chance of rain. In the states, one would panic while attempting to come to terms with the fact that their trip is going to be soggy and potentially miserable. In Italy, however, 80% chance of rain is more akin to: there is an 80% chance that at some moment in the entire span of 24 hours, there could be a drop of rain or two. Aren't I lucky Siena is in Italy.