Anti-Fly Device

The use of a plastic bag full of water hanging from the ceilling of several taco kiosks on the streets, is a traditional

way to scare flies away in Mexico. The refraction of the water, amplifies the colors and movements for the sensible

eyes of a fly reflected on this sphere, scaring it away. (by josedelao)

The main reason I posted this was to ask: does hanging bags of water up actually work? If so, why don't we do it here? If it doesn't work, why do they persist in the practice?