"I think I'll move to Saigon," Dave said, "because the people in Hanoi are so unfriendly."

Two minutes later, the three Vietnamese sitting opposite fill us up glasses of gin from their bottle of Bombay Sapphire, and continue to give us refills, shisha and chips for the next two hours. Then they left before we could return the favour. I think they were just being friendly.

I love Hanoi.