Unhinged

Spot on, even though it isn't a clear prediction:

You could come up against it when you do someone's bidding only to find they've moved the goal-posts. This could be the last straw. More than half the problem is that although you know you can be flexible - you also know that the person concerned is unhinged and/or totally unaware of practicalities. 



More substantially, a set of predictions over the last few weeks is playing out and I'll let them run until posting.