This stuff is beyond mind-numbing.

DENTON, Texas (Fox) - A Denton teacher allegedly refused to grade two student reports because they were about guns. Now one mother is demanded answers and an apology.

Marshall Williams said he and his classmates were told by Mr. Dewey Christian at Denton High School to write a report on anything that they were interested in using different types of sentence structures.  He chose to write about the Fort Worth gun show.

But then he said his English teacher told him he would get a zero on the assignment because of the topic.

Williams’ mom confronted the teacher. She asked him if he had outlined any criteria for the topic and posted a video of his response on YouTube.

“So because it had guns in it you refused to grade it?” Kimberly Williams asked.

“Not just guns, but you see we’ve had a certain amount of violence and things in schools…” Christian replied.

“I’m not asking you about that. I’m asking you about the subject matter of his paper and why you took issue with it,” the mother said.

“The problem was not the subject matter…” the teacher said.

“You just told me it was the subject matter,” the mother said.