What is your last name?

I have a friend, her name is Ina WAT. Her last name is WAT. One day she goes through US immigration, the officer said WAT is your name, then she said WAT!?

Today she goes shopping and a lady asks her if her name is Ina Wat. She says Yes and the lady asks her what her last name is. Ina said WAT! The lady repeats and says, what is your last name? Ina replies WAT! The lady apologizes and asks her again what her last name is. Ina says WAT!!! The lady apologizes and stops asking as she thinks Ina must be deaf~

What is your last name Ina? WAT!!! How many times do you want her to repeat~

Here's Ina Wat~~