I've never had to submit mitigating circumstances before so I don't know if I'm BU or not.
I had a late miscarriage slap bang in the middle of an assignment. I developed a horrible reactive depression and couldn't even get out of bed, not to mention the fact that I was mourning the death of my baby boy.
I spoke to my personal tutor who suggested submitting mitigating circumstances in case I spectacularly screw up the essay. I did, gave the reason - late miscarriage and put with it the medical notes to prove that it happened.
I get an email back from the course leader rejecting it because information is missing.
Apparently I need to go into detail as to how this affected me. 
I don't want to go into detail as to how it affected me, I'm trying to heal and move on. I really don't want to write down how fuckinf devastating and painful it was to see my dead baby.
Should it it not speak for itself?!