Telling us what to do with peelings, in a lighthearted way

I spotted this poster while waiting on the platform for the S-Bahn and gave it an A+ right away. What a clever way to encourage us to put our biodegradable waste in the right container. Throwing something away here requires just a moment of thought, since you are expected to sort your trash into paper, white glass, colored glass, 'light packing material' (aluminum cans, plastic containers, etc), biodegradable and "all the other stuff". Big bins live out back behind our building, to collect everything. It doesn't take long to learn the system and I think most people believe it's worth the effort and do it routinely.