Football fans are famously fickle. Supporters can be on top of the world and optimistic after an important win, while a damaging loss can leave them crushed and pessimistic. That's the capricious nature of football fandom.
Crystal Palace manager Patrick Vieira has criticised that mentality, saying - rightly, understandably - that he urges his team neither to be too high after victories nor too low after defeats.
Yet Wednesday night's crucial clash with Manchester United could go either way. A loss, making it seven in their last eight in all competitions, would see the pressure crank up further on the boss and increase the urgency of their transfer plans.