Andi's dragonverse lore fact: while many formerly human dragons have relatively gentle first changes, often first to their anthro forms and triggered by emotions of revelation and realization of what they are, many of those whose changes are triggered by desperate circumstances tend to have more rapid transformations.
A crew member aboard a sinking ship, realizing the vessel is doomed and fueled by fear and desperation, erupts outwards in a storm of scale and wing into his true form - a sea dragon, large enough to carry the rest of the crew on his back.
A soldier on a bloodstained battlefield faces sees a cavalry charge roaring into the flank, and he feels a strange strength well up from within him as something growing from his brow rips through his helmet - a strength of magma and stone, the power to shake the earth and stop their charge - the power of an earth dragon.
a young woman falls from a high tower, pushed by a rival suitor who sees her as a threat to her ambition to marry the Grand Prince; and even with rational thought paralyzed by the shock of betrayal, an unconscious, instinctual part of her knows to spread her wings and pull out of the dive.