Someone's going to try it and end up at the hospital.
"Waterproofing and Bioproofing are different. (your body rusts things that water don't"
Best material? Glue from a glue gun, according to Lepht Anonym.
And PCBs are a no-no, but that might change too with the appropriate coating.
Full talk at: www.youtube.com/watch?v=p_JpPMIriAI
I think Lepht is still in "repairing Lepht" mode, so she probably won't be trying this new nanocoating. But it could definitely help hedge cybermancers who practice in their kitchen.