Cistercian monastic rules permitted wine but the looseness caused monks’ seduction.

Evidence

Another type of story is exemplified by that of two Cistercians taken before Salah ad-Din as prisoners of war. The Rule of St Benedict allows meat only in special cases, but wine in moderation always. When these two were served meat and water by two handsome girls, they resisted all temptation and stuck to prayer; but when they were served fish and wine, to help them forget their troubles, they became very gay, and fell upon the girls (irruerunt in foeminas illas). The next day Salah ad-Din criticised the Rule in the light of his experiment, and dismissed the monks to expiate their sins among their own people. — Norman Daniel, Islam and the West, 1102

Categorization

• BMF: The two Cistercians holding against meat and pretty girls but falling when served fish and wine evokes the exact reversal pattern in We — restraint against the visible threat while being undone by the permitted vice.
• CANDY: Monks who bravely resisted meat and seductive serving girls but were undone by wine and fish — the loophole in their own rule undid them.
• SHARE: For a friend interested in monasticism or medieval satire: a Cistercian order whose own permissible wine undermined their chastity before Saladin.