The video which went viral on Chinese social media on Thursday shows a toddler picking up a steel pipe trying to defend his grandma from a group of Chengguan, the urban management force installed in Chinese cities whose job ranges from clamping down on illegal street vendors to enforcing rules on city sanitation, landscaping and parking. He could be heard shouting “don’t touch my grandma! Go away, don’t touch my grandma!” while he held a steel pipe, trying to push the Chengguan away…. he has since been arrested….