Probability

In the shitty upstairs restaurant at Noi Bai airport, Hanoi. I needed to go there for wifi and electricity:

"Excuse me. I can't hear the airport announcements from here."

-- "Yes?"

"Can I hear the announcements here? The flights? The times?"

-- "No. Can not. What time your flight?"

"It's 1.30 - to Singapore."

-- "That's ok. [smiles] Someone comes to tell you."

"Really? Always? They always come and check?"

[smiles and points at the escalator]

-- "Yes they come."

"Really? Always? They always come and check?"

[smiles and looks me in the eye]

-- "Not always"

"Sorry. But. They will come here or not?"

-- "Usually. Yes."

[Smiles again and looks down at the bottle of prescription pills that seems to have appeared in her hand.]