Possible Clues:

• Expert being paid to take the case likely to stir up anger?
• In favour of case stirring up anger, perhaps
• Deliberately aimed at causing a strong reaction
• Deliberately annoying
• Case taken on by expert asking for it
• Exasperating expert introducing case
• Tending to excite expert on case
• Aggravating expert going over case
• Supporting the case for Latin is likely to cause annoyance
• Deliberately causing annoyance