I was at a local supermarket in my hometown with my mother. I was in a line to be about to check out my stuff and do payment. A local appeared behind me. The conservation was in Vietnamese
The man (A). Worldtrekker (B). A Casher (C)
C: So, your total is ###. Would you like to pay in cash?
B: Oh no, I will pay by credit card.
<C was doing a necessary process for my payment.>
A: Are they done yet? (noticed to me) Why does it take a long time?
<Then A saw my credit card. A shake his head.>
A: Ah credit card. Such a show off. Complicated. So many steps. Take other people time. Why not using cash? (with his annoying tone)
<A did not say it out loud but loud enough for B and C to hear.>
Later when it was his turn, I saw quickly he withdrew from his pocket a bunch of 500,000VND notes.
Worldtrekker’s point: I did not give any comment or complaint about his payment. Why did he stick his nose to my business?