Danny Alexander's Alternative Liberal Democrat budget seems to have earned him widespread ridicule. This is no doubt deserved. Signing off a budget you co-wrote and promising that you and your party will vote for it sits unconvincingly with presenting an alternative budget. Especially when you look like you are holding a child's lunch box.
Yet it doesn't seem that uncommon now to ignore your actual commitments and believe in something entirely different. The SNP, for example, seem quite unfazed by the collapse in oil revenues to a thirteenth of what they expected during the indyref. Had Scotland voted yes, it would now be in utter crisis.
It is as if these debates were simply a work of fiction without any effect on people's lives.