The document contains 15 cartoons by Stefan Pölt that provide humorous insights into challenges with revenue management systems. Some of the insights are that automation cannot be stopped, deadlines should not be too ambitious, listening to the market is important, users do not like bugs, simulation expertise is helpful, not all presentations are successful, what suits one customer may not suit another, efficient solutions should be sought, tools should support different situations, online help can be useful, forecasting and optimization are complex, significant attributes should be selected for forecasting, math is not everything, and checklists should be used for testing.