X -- has flaked on me before. S/he was an enthusiastic participant in Ethics, until s/he wasn't there anymore. S/he had told me that s/he had a complicated family life -- but, s/he thought the class was possible -- then, nothing.
Surprise, surprise -- X was in my logic class -- until s/he wasn't.
Yesterday was the final -- and, coincidentally, during the final exam X leaves a message of woe -- dead grandfathers in Africa, stolen cars and laptops -- and thus no way to come talk to me before the final -- all of this after being gone for nearly 2 weeks (a third of the class). I really don't know if I believe hir -- since s/he only called after s/he figured out that it was too late to withdraw from the class.
X has earned a D, and that's what s/he will get.
A -- has been a model student. Tuned in to lectures, never missing a class section, doing well on the work and showing improvement.
A e-mailed that s/he had missed a quiz because their spouse chose this week to reveal some really shocking secrets -- that they had been keeping for their whole relationship.
A wanted more time to take the quiz -- and A got it.