> I don't think a food grade powder that will wash away with the next rain counts Your evidence for it "washing away with the next rain" would be? Ever see wh

> I don't think a food grade powder that will wash away with the next rain counts Your evidence for it "washing away with the next rain" would be? Ever see what a child can do with a glass of "cherry" Koolaid? A dye being labeled as "food grade" has essentially no correlation with its permanence. > Does sidewalk chalk count as vandalism? Sidewalks aren't 4,500 year old World Heritage Sites.