So it was, and was not, a mistake to pour that heavily. Jarvis wanted to snort, because that wasn't helping to clear anything up for him at all, thanks. Either he'd done it correctly or he hadn't, but maybe Master Stark's standards were flimsy when it came to his alcohol; not the quality, of course, because even Jarvis' lack of education on the matter didn't stop him from knowing that there would be no rotgut in this house, but quantity might be another matter. More was better when drinking alone in the kitchen, when polite company and prying eyes weren't around to see that cocktails were sometimes nothing more than liquor and ice.
Or Jarvis was thinking too hard. It wasn't as if he had to worry about things like this. Master Stark would tell him what he wanted and when, and that would resolve the matter neatly. So went the theory, anyway, but Jarvis had learned (was still learning) that communication was not his owner's strongpoint. Either that, or he was hoping everyone around him might spontaneously develop the skill needed to read his mind... but only so far as detecting needs and desires went, and nothing more.
Everyone had their secrets. Jarvis didn't, but those were another luxury not afforded to him.
There came another twitch of brows, not quite lifting them in question, not quite furrowing them in displeasure, but. His attention had diverted to the peel dangling threateningly over a very clean floor. It wouldn't make a mess, obviously, but he had just mopped there earlier in the day because the three things he knew how to accomplish without worrying involved fetching, carrying, and cleaning. Cleaning was so nice and easy, and he could see an immediate result. Shiny floors, check. Unless someone started dropping bits of fruit around, anyway.
His gaze jerked up, fixing briefly on Master Stark's face at the mention of boredom. What a strange notion, having nothing to do. Jarvis suddenly found himself with enough work for a dozen people and little enough idea how to schedule all the tasks out efficiently, and here was someone so lacking in anything to do that he was talking to someone he oughtn't be about, essentially, nothing at all. At that, Jarvis really did snort, and then immediately looked horrified as a result, shoulders dropping inward as if in anticipation of a blow.