Something that has been lost a bit in this thread that I want to comment on - the treatment of the injury as described in AJ's letter.
As a business owner, we occasionally have accidents at work where someone gets injured. (Thankfully, not often and not seriously) But we have a very rigid policy on injury treatment - you tell the doctor everything and do EXACT what the doctor/therapist tell you to do. The medical professionals have been hired to treat you to the best of their ability and it is your responsibility to tell them what's up and to follow the treatment plan. There is NO room for self diagnosis or self treatment. If you like, we can and do provide a 2nd opinion for those unsure about their injury.
Why are we so rigid? Because we are legally responsible!! And I feel I have a moral obligation to make sure my employees return to good health. I can't live with people "doctoring" themselves and have poor outcomes. If people that can't follow this rule, they are better off working elsewhere as I have little tolerance for self doctoring.
So, from that perspective, I have serious issues with a number of AJ's statements regarding is injury/treatment. He statements indicate that he was not always forthright with his feelings nor was he dedicated to the treatment plan. The U of MN has just as much liability as I have in my business - they need to make sure all students are given proper medical care. Based on what AJ wrote, I would have called him out too - for being immature and not following the rules regarding his injury. It's a serious matter.
I would never hire him. Not because of his letter (which was appalling in structure). But because I want open and honest people who can follow the policies and rules of the company. Like AJ should have with the training staff.