A video making the rounds, lacking much in the way of details, shows a foreigner being held by two Chinese after what is presumed to be a dispute over a fare. After being hit several times, and being unable to get the cabbie to release his shirt, the foreign man slips out of his shirt and attends to his bag.
If you have more information, or have been in similar situations, please let us know in the comments.
h/t Shanghaiist