Wash your hands too, filthy buggers :p
"Canon has issued a warning to owners of the EOS 650D/Rebel T4i that the rubber hand-grips of some models may turn white, and produce a chemical that can cause an allergic reaction. According to Canon, the chemical, zinc bis (N,N'-dimethyldithiocarbamate), is not used in the production of the camera but is a potential by-product of a chemical reaction between other substances found in the hand-grip. Canon has identified a certain number of cameras where....."http://www.dpreview.com/news/2012/07/10/canon-warns-of-allergen-in-650d-T4i-grip
