Glaurung, father of all dragons.

Ancalagon: Cute. Is that a dog...? Can't see it... You know, it's too small...

Carcharoth... Yup. Definitely.

Hurin's torment

What...? Imma use this "excuse" from now on...

Ancalagon: Was there a fly...?
Glaurung: Nah. Pretty sure it was a spider.

Smaug & Glaurung: YOU GOTTA BE JOKING!
Ancalagon: