There are many dogs in the back alleys and side streets of Ayutthaya. The dogs are not particularly friendly, and if one tries to approach you, do not panic. Walk away at your normal pace as running away is not a good idea. As Ayutthaya is full of ancient ruins, some bricks might fall because of their age. Just be careful. It is said that a heavy brick once fell at Wat Chaiwatthanaram. Not everyone in this area is friendly. Stay out of trouble with locals and strangers; if you need help find someone you trust or the local police, who are friendly and helpful toward tourists. Remember to haggle first before buying souvenirs; sometimes the sellers will short-change you, instead of offering the proper amount of change. Insist on counting the change you receive.