A quick web search will provide you with many examples of what some perceive as waste. This is widespread common knowledge along the lines of the ice cream mach

A quick web search will provide you with many examples of what some perceive as waste. This is widespread common knowledge along the lines of the ice cream machine at McDonald's frequently being broke so there's little reason for the poster to be obligated to provide examples of easily found common knowledge, even if you don't personally agree with the perception.