According to my Chinese girlfriend, who is a lovely girl and I would never have a moment of indiscretion with
, men who don't wish to get caught by their families say they are "going out for morning exercise" and end up at a "hairdresser's".
So I don't know. See if there are any hair salons open in the morning that are staffed by women but only have male customers (they've got those in Sham Shui Po, like). Other than that you'll have to go out past your bedtime and gods forbid take the MTR to a different part of the city. Women of the night ususally aren't up in the mornings.