Failure to aim properly will see users of public toilets in a southern city targeted with fines from September.

The regulation in Shenzhen, Guangdong province, which has been approved by the city government and takes effect on Sept 1, stipulates that improper behavior, such as painting and engraving on walls, spitting, littering and smoking, will invite a fine of 100 yuan ($16.30).

The regulation also targets those who aim poorly when urinating or defecating.