On: Choosing Hong Kong Is a Brilliant Move by Edward S...

[fnordfnordfnord]

>how hard do they check for leaving Hong Kong?

Busy border guards are busy. He might slip in unnoticed on some dodgy documents. Also, HK is an island, and China is like, right there. One could get into the country unseen via boat very easily. Boats are coming and going along the coast all the time.