Tony took about as much notice of the water as he'd taken of it when it was delivered - that is to say, he looked at it like it was some fly that had turned up in his soup, and turned back to finding the vermouth. He made an eloquently dismissive wave: Jarvis could have as much water as he damn well pleased. "No, I have not considered that." He pulled a glass out of the freezer drawer (not big enough for the volume he had waiting for it in the shaker, but he had a feeling he could make it work) and left it somewhere not too unsteady, for the moment. "Have you considered that humor is a function of intelligence, and if someone can't figure out the difference between small talk and a mortal insult, they're probably a moron?"
He imagined Jarvis' objections were all about style, in this case - all premised on some idea that failing to handle Rogers with kid gloves had been a failure of etiquette. That he'd been impolite. That much he was almost willing to concede, he just didn't think anyone should blame him for it. And while he'd come to expect being taken just a little bit to task over issues of decorum, he didn't for a second think that Jarvis might not share his opinion on any given person's wit. As far as Tony was concerned, they were on the same level in that regard. It was true that they enjoyed very different types of intelligence, and that recognizing someone else's abilities didn't change a thing about the way Tony always acted as though he himself knew best, but they were both beyond clever. Jarvis was brilliant.
Which meant, of course, that he would agree with Tony.
At the very least, he had to agree on the substance of the matter: whatever Tony might have screwed up in the procedure of the evening, the real meat of it was that Rogers was just - unaccountably stupid. "Whatever" he muttered, scooping in a heap of ice, taking up the shaker, and half-shouting over the violent rattling noise as he put it to work. "If that idiot wants to get himself killed - who cares. He's fucking reckless."
And he slopped himself out an exceedingly full cocktail, the very picture of caution.