Mens subway carriage stinky tofu users: across the screen can smell (source:)
A man walked into the carriage with a bowl of stinky tofu at Yangjiawan Station of Wuhan Metro Line 2 on October 10, and ate it as if nobody else had eaten it. The carriage immediately smelled sour and refreshing. @ Wuhan Metro operation said that the subway train belongs to a closed space, is fasting, especially the taste of larger food.
Source: Responsible Editor of Chutian Metropolitan Daily: Su Hong-hung_NBJ9980