Possible Clues:

• Impious act remarkably considerate!
• Decalitre emptied over dry allotment, damage done
• Damage of anything sacred
• Second-rate, I gathered, lack of respect on church property
• Violent disrepect
• Curiously considerate to religious vandalism
• Considerate when drunk? Blasphemous behaviour is the answer
• Strangely considerate, doing harm to something sacred
• Violently disrespectful treatment
• The offence of considerate vandalism