A Chinese family helped their quadruplets' teachers by shaving numbers one to four into their kids' hair.
The parents, who live in Shenzhen, Southern China, created the identifiers to make things easier for the teachers to tell their four sons apart on the first day back at school.
While some people have slammed the family's tactics, believing them to be cruel, others think it will be a valuable exercise to at least help other children to be able to count up to four.
The news has gone viral in China with nearly 13,000 emails sent about it in 13 hours.
