Sherlock and Watson take a hot air balloon

Sherlock and Watson get into a hot air balloon and take off for a casual ride. Suddenly, clouds roll in and the winds pick-up, surely moving them off course. Sherlock says to Watson "Watson, take us down and let us figure out where we've traveled." On a stroke of luck, there's a Shepherd with his flock in the field. Sherlocks shouts "Hello good sir, can you tell us where we are?" The Shepherd paused, thought about it, and replied "You're in a hot-air balloon!" Watson was obviously frustrated but Sherlock assured him "Don't worry ole' boy, I know exactly where we are; we're in Russia!" In disbelief, Watson asked "How can you possibly have arrived at that conclusion?! He told us we were in a dammed balloon!" Always collected, Sherlock assures "Yes, but that man was no mere Shepherd, he's also an engineer." Further dumbfounded, Watson again asked "How could you know that?" to which Sherlock explained "Attention to detail old chap! Before he answered, he thought about the question, and his answer was precisely correct yet completely useless." Picking his jaw off the floor Watson continued his exploration of the aforementioned conclusion "Fine, he's an engineer, how does that land us in Russia?!" to which Sherlock answered "Well, isn't it clear? Only in Russia are shepherds also engineers!"