Here we go, new head canon to try out.

Yugiri: "I'm sorry for hiding my appearance but I was afraid with as tense as your relations with Dragons and the heretics are that it may cause some negative reactions."

Haurchefant: "Um...OK? Why would you think that?"

Yugiri: "Well... I was afraid one of the Knights may have mistaken me for a dragon."

Haurchefant: "Why would they do that? You look nothing like a dragon. If you're a dragon just because you have a few scales then that must make the Miqo'te bloody Coruels."