Wherein, Jack comes from a tribe of nomads who have been flying and taking care of dragons for centuries and Hiccup manages to crash into the strange boy and his light fury mid-flight. Jack gives him shit for it of course, telling him how utterly graceless he is at flying his dragon, telling him off for putting saddles on dragons because pfft what are you three? His baby sister can fly better than him and she’s half Hiccups age. And, what is that stench? You don’t bathe your dragon? Moisturise their scales?! Truly you stinky Vikings live up to your name! Guess Jack’s left with no choice, he’ll teach these so called dragon riders a thing or two about dragon husbandry.