[ The arch of an incredulous eyebrow. ]

Say you’re at the tail end of your dose right before a re-up, when you catch a fever which leaves you bedridden for a week, shaky and unable to work the philter. You’d want to be shuffled off the board? For a fever?

Or you come back from an unexpectedly extended mission: already in withdrawal but salvation’s just a few minutes away, and all it needs is a healer to administer the cure.

There are so many ways this might happen. It’s smart to have contingencies.