Realistically the worst case scenario for most of us?
Ok you have a stupid manager who buys into these technologies, decides to shift to them and drops you like a stone.
You get your notice, redundancy too if you are permanant and sit with feet up on desk reading the job adds while chaos begins to desend on the department.
6 months later while you are happy in your new and probably better paying position you get a call on your mobile from the old company - begging you to come back to help them fix the mess.
So, do you tell them where to shove it?
Or do you quote a £1500 a day consultancy rate? :)
Either option has its satisfactions!!