When it comes to teachers, they each have their own way of doing things - from lesson planning to disciplining.
Their methods for marking work can also vary greatly.
One teacher might use memes to grade papers, while another will love to give out gold stars.
But one employee from Rutherford High School in Panama City, Florida was just brutally honest when it came to marking one of her student's pieces of science homework.
The teacher gave the student no credit and bluntly asked "WTF is this?"
For those not in the know, 'WTF' is an abbreviated way of saying 'what the f***'.
Understandably the student's mother was not impressed by the teacher's use of profanity.
Melinda Smith spoke to local news station WJHG about the incident and branded it "not acceptable".
She said: "Just seeing WTF what is this, you know, basically... it wasn't anything about not getting the credit, it was more so the language about what they're writing to a student, that was very inappropriate and not acceptable for a teacher whatsoever."
The mum has since called for the teacher to be punished for her actions.
She continued: "I think for sure she needs to be reprimanded. I believe that something should be placed in her file."
Coy Pilson, the principal of the school said that the district officials and the school's HR department are investigating the incident and will take the necessary steps to resolve it.
Pilson told Yahoo Lifestyle that the teacher in question, who has not been named, was "distraught" over the incident and accepts it was her "mistake".
He added: "We make mistakes, but we understand that we are called to a high professional standard. And when we make mistakes, we try to correct those mistakes and move forward."
