This one came up pretty spontaneously. I was waiting for my class to start and had a green highlighter out and was making circles. Naturally this came about. The Mr. Yuk symbol was used as a replacement for the traditional skull-and-crossbones warning label for poison in Pittsburgh since the 1970s. Why? There was a good belief that children might associate the jolly-roger symbol with the Pittsburgh Pirates.
- ‘Mr Yuk is mean, Mr Yuk is green!’ (dangerousminds.net)
- Poison Prevention Week is coming (heraldnet.com)
- Practice Poison Prevention (tonyaburris.wordpress.com)
- Fluoride, Lithium & Radio Isotopes in Tap Water ??? (2012patriot.wordpress.com)