Sight is our primary sense. It’s so dominant that it can subvert the others. I once saw a lecturer melt chocolate and pour it into a mould shaped like dog excrement. Even though everyone in the room knew that it was chocolate, only a few would have a bite of the resulting object. The visual input far outweighed taste, smell, touch and even commonsense.
Designer Sherwood Forlee recently used this fact to his advantage by inventing clear sandwich bags pre-printed with what looks like spots of mould. The effect of putting your sandwiches inside the bags is that no one steals them from communal fridges.
I bet his once were.
Source: www.thinkofthe.com