A school in southern China has come under scrutiny over an unusual classroom rule that reportedly allows students just one bathroom break during an entire term.Chinese school reportedly restricts bathroom breaks during class. (Shutterstock)According to South China Morning Post, the policy at Ruyuan County High School in Guangdong province was outlined in a PowerPoint presentation during an internal meeting in late August.The rule reportedly states that each student can leave class to use the toilet only once during the term, including when the request is described as an emergency.Chinese school limits bathroom breaksA photograph of the presentation was reportedly taken…