Possible Clues:

• Mitch to take part in The Fugitive outside school
• Fail to honour commitments to one's class?
• Skip school
• Absent oneself from school
• Mitch to take dramatic role in The Fugitive outside school
• Be out of form, naturally struggling to shed pounds during training
• Fail to honour the commitments of one's class?
• Hamlet, for example, gets mainly faithful worker to skive
• Go AWOL from school
• Stay away from school