2 Metaphors for chaperon

The confraternity spread into Aquitaine, and the routiers were defeated in pitched battles with great slaughter; but the chaperons in course of time became lawless fanatics, and were almost as great a nuisance to society as those whom they had undertaken to exterminate.

What a disagreeable word chaperon is at best, and what a thankless vocation the unlisted, active, and very irregular verb 'to chaperon' implies.

2 Metaphors for  chaperon