There is no reason to take a Tuk-Tuk in central Bangkok , no Air-Co , dangerous driving habits, no fixed price (no meter) and they will not get you there any faster because they are too wide to cut between traffic like a motorcycle taxi (another way to die)

There are lots of scams , never fill in a survey with you real info or Hotel, those nice Indian guys who say you are a lucky man are trying to scam you , Temples do not close for cleaning etc,

Just go with your eyes open and you will have a great time

Soarer