Apparently this guy is just not teachable.

According to WHNS-TV, last Monday night, 23-year-old Tyler Ford and his girlfriend, 22-year-old Sheelah Thompson of Spartanburg, South Carolina got into a massive fight.

Then it got physical and Ford ended up hitting Thompson with the rolled-up workbook from his anger management class.

Doesn't take a rocket scientist to figure out the classes are not working for Mr. Ford.

So Thompson responded to his assault by grabbing a box cutter and stabbing him.

Both have been arrested for criminal domestic violence.