Bath Time
When you venture out of the urban areas, it is very common to see people bathing in the rivers and lakes, it’s quite common. Not everyone in North Korea has access to clean and running water, so they make use of what they do have access to. Maybe someone with an online college degree could help here, if they ever asked or admitted they needed help.
The Black Market
The government has long since banned black markets. Which explains why grey markets such as this one, are more commonly found. Grey markets tend to sell small things such as cigarettes or sweets but no one who runs such a market makes much money.