[He pulls the near-empty thing away from his face, and draws the back of a hand over his mouth.]

It is disgusting, [he says, tense and revolted,] but I would rather force it down on the chance it will prevent something regrettable, than...

[Than be a priss, and take his chances. The stakes are too high for his pride to get in the way right now. Sometimes, needs must, and you put on the disgusting clothes with the interesting stains because the alternative is peril, death, and failure.]