umm..
We had a President a while back that was an Arkansan Horntail.
There were reports of his being aggressive also...
There's a lot of animal betwixt the horn and the tail. That President was a horndog, not dragon.
One could have a horncow, or horngoat, or even "horned lizard", although those horns are more mere decoration.
The point is, the Hungarian Horntail is a Rowlingian creation, said to be the most dangerous of dragons.
The Arkansas Horndog is only dangerous to the female of the human species.
Take note, however, the female of the Arkansas Horndog is a venomous beast, and should not be trusted.