Dragon Egg Hatching

One of the most intense experiences for most people working with dragons is being present for the hatching of a dragon egg. While the specifics of a hatching will vary based on the customs of the humans taking part, the process is almost universally described as a life-changing experience, especially the first one someone attends.
Typically, an egg is watched and tracked carefully as it approaches it's breed's hatching window. Each breed's window varies from as little as 20 weeks in the shell to many years. When an egg begins to show signs of movement, hatching crews begin to gather eligible candidates for the dragon to choose. 
In many of the established services, a choosing ceremony is held shortly after the first signs of movement in the shell. This allows the chosen candidate to prepare more thoroughly for the hatching itself. The ceremonies will vary, but in general available candidates deemed eligible are presented to the egg individually while senior officers or elders observe the egg and the candidates. Each candidate will approach the egg and gently make contact with the egg. If the candidate is chosen by the dragonet, they typically receive a sensation from the egg, often described as a warm and comforting feeling. In addition, the eggs tend to emit a low murmur and heat up significantly until the hatching.
It is rare for a dragonet to linger in the egg beyond the choosing for more than a month or so. Those who do linger are generally those whose movements in the egg were prematurely brought about due to stress or other external factor. 
Once the egg begins to show signs of fractures, chosen and available members of the senior leadership typically assemble to witness the final hatching and the harnessing. Once the dragonet has broken through the shell, every effort is generally made to allow the dragonet to free themselves from the shell. Once they are able to stand and take a few steps, the dragonets typically begin searching for a meal. At this point, dragon husbandry suggests that a chosen should address their dragonet calmly and logically, offering to assist them with finding a meal, if they will agree to don a harness and allow the chosen to give them a name. Once these measures are completed, a dragon is considered tamed and is highly unlikely to become a feral. This process seems to cement the bond formed between the chosen and the dragonet while in the egg and is not seen by dragons as a bothersome act in any way.