As a non geocaching muggle, I thought very little about guardrails. Perhap I would notice when they were between me and a fairly percipitous drop, or when they kept another vehicle at bay. Now that I've been involved in the sport, I SEE GUARDRAILS EVERYWHERE!!!! Miles of them! Along highways! At the approaches to bridges! Down the street from my house! The possibilities are endless! I now see what I never did before. Guardrail caches are my calling, my siren song.
Like the title says......