Do Not.

This is a semi-comprehensive collection of forbidden objects and actions, captured in the format of sign and symbols in various countries. While I can imagine that many individuals enjoy such "things" as ice-cream, balloons, cellphone, A4 paper, 2-wheeled scooter, durien, spatula, scents, flip-flops, the sun and tennis balls, I like to ponder about how such things have found their way in to the forbidden land, how their presence is interpreted, to what culture and in what context. 

Smoking indoors is allowed