Maybe the planets are all aligned or something, but today at lunch, we were discussing a similar situation. We just finished our second trimester a few weeks ago and one of my colleagues was talking about a student who missed 21 out of 63 days of class. Now, we have an attendance policy that says that if a student misses more than 5 class days, he cannot receive credit for that class. For various, annoying reasons that I will not get into, this policy is rarely enforced. This teacher was complaining because the student missed a LOT of class time, but still earned a C in his class. He thought that the policy should be enforced and this student should not receive any credit, and every one at the table seemed to be in agreement.