70-100 Brass Rings Stolen from Fire Hydrants in August and September

Thieves can sell brass rings stolen from fire hydrants for $20. Thefts can cause delays in fighting fires, but each firetruck carries two spare rings.

http://www.chicagotribune.com/news/local/breaking/chi-thieves-reach-for-brass-rings-from-hydrants-20111027,0,3292354.story