So, does anyone have an official answer ?
Argument that "crisis have to do something bad" is not relevant due to rule "you can always choose top or bottom anytime" So when Water Shortage, you can choose lose 1 food and discard cards even if you have no cards in hand. Does this make sense ? Not to me ... But rules say you can do it ...
So why cant you choose someone in the brig to move to sickbay? It does nothing, rules only prevent moving those characters, not choosing them as a victiom af the crisis. I dont know ... i dont like it, i also dont like "discard cards even i have nothing to discard" rule.... But there is no official rule about it ...
I asked this question only because i thought i miss something in the rules, but clearly i havent and only fix on this is to make an errata/faq on this. As it is said "what isnt forbidden is allowed"
The difference is the point at which you make the option. With the Water Shortage card, you choose either the top or the bottom option, but you don't have to check whether those options are possible. The option chosen then specifies which players have to discard cardsthere are no further options for the current player to make, so the fact that it isn't possible to fulfil the criteria is no longer relevant.
The same would be true in the case of a card where one option was "Send the President to sick bay": you would be perfectly valid in selecting this option while the President is in the brig and then "ignore" the instructions because once you have selected the option, you are being told which player it applies to.
Essentially, you can choose either the top or bottom option freely, regardless of whether you can satisfy the conditions, but once you have made that decision, any further decisions that need to be made in your chosen text must be valid options, assuming one is available.