How do know when you are back in Siena?

Well, when you see the Duomoyou begin to be suspicious, but other towns have Duomos. When you hear the drumsand see the flagsyou are pretty sure, especially when you notice that all the females have been relegated to the back of the paradeyou begin to think this must be it, although other towns have drums and flags (but not as many as Siena, we think). Having an aperitivo on the Piazza del Campo, reinforces your suspicion.But, when you pass by one of your favorite restaurants and find it closed, but the proprietor spots you and comes out to welcome you backyou know you are back in Siena again!