When I was at the hospital having my dressing changed and wound cleaaned on a daily basis for 5 weeks I was shocked at the amount of people coming in with dog bites.
My step daughter was bitten 3 times before the age of 12.
Dog bites are very common and so are dog fights with other dogs.
This is what I have found in my 30 years experience.
You will soon find out that the docil street dogs will turn in an instant and attack ,just as the one that left deep bite marks in my lower leg last year did.
Previously all non Thais would have to fill out a landing card and this would have your flight details on it and the flight number is always hand written near the entry and departure stamps.
The Landing cards have been suspended at the moment ,hence the need to give Immigration your boarding pass.