Mother Mandy Head was shocked to receive this letter from the headteacher of her son's school after Joe, aged 11, wore a small ponytail in an attempt to imitate the style of footballer, Zlatan Ibrahimovich.
Image: Mandy Head
Mandy shared the letter on her Facebook page, with the caption 'REALLY !!!', and the story quickly went viral.
She said that initially she found the letter 'so ridiculous' that it was almost funny, but was upset when she realised the connotations the headteacher had drawn from her son's hairstyle.
'I became upset that she could associate drug-taking and my son in the same letter and it became offensive,' she explained.
'I'm not aware of any rules for hair at the school.
'We will discuss it with them, but they didn't have to add drug-taking into the letter.'
Zlatan Ibrahimovic, the footballer whose hair Joe was trying to copy. You can see Joe's hairstyle on the BBC website.
Despite their surprise at the tone of the letter, Joe's parents did ensure that he went to school without the ponytail the following day, as requested in the letter.
The school has since apologised for any offence caused, with the headteacher saying:
'The school sent a polite request to Joseph's parents regarding his appearance.
'I'm sorry if this letter has caused any unintended upset and would be happy to discuss it with the parents directly.'
So - should schools be able to dictate children's hairstyles?We asked you on Facebook, and here's what you had to say...
Julie Elizabeth Nope! Unless for cooking science or PE then all they can ask is long hair is tied back, otherwise kids should be allowed to express themselves however they please.
Mel Beard No way. It's best for kids to experiment when they're young!
Katronna Barrie For some practical subjects long hair should be tied back.
Elaine Guymer No, it has no reflection on learning.
It seems that most mums are in agreement with Mandy - but what do you think?