I go by Rule 2 in deciding the absences.
This is what I normally go by:
He can miss 2 days before he has to tell us that he won't be around and has 7 days to give one of us a reason why he did not leave a message. I allow those that have good reasons back in and this rule is mostly for those who are in the hospital or without internet suddenly. They can't be doing this all the time, Understand? 

Since wagtail's character, is not here it will be as  if he overslept and will travel on later since he is not here.