A street sign common in Manila that a true-blue Filipino might miss when he is in Europe is one that reads Bawal umihi dito (Urinating here is prohibited).
But believe me, it's not as if no one in Europe has not gone out to pee in public. I drank myself crazy on the eve of the feast of St. John the Baptist and I had to go to the john to relieve myself. The Spaniards, on other hand, threw caution to the wind and peed in the river.
(Oh, and by the way, this is me, faux-peeing in Leon.)