Possible Clues:

• Lawyer's case?
• Perhaps a case of non-drinking pain
• Case of papers
• A case of this could make a teetotaller be in pain
• That could be a case of discomfort for a non-drinker
• Mission figure
• Lawyer's case
• Court case?
• The sort of case that would be painful for a teetotaller
• Might be a case of pain for a non-drinker