13. Toilets are not free.
I think this is my very first time outside Thailand that I had to pay for using the toilet. Most public toilets in Thailand are free of charge, even sometimes you have to pay the amount is next to nothing about 3-5 Baht.
It was interesting too see a door that are allowed to open only when you put coins in, so we always needed to spare some coins in our wallet in case of an emergency.