Before I removed the comment about T'bor getting drunk and beating Kylara, I searched all the Pern books. I could not find any "drunk" comment related to T'bor. There is a comment in Dragonquest which says this, "It was too bad you couldn’t beat a Weyrwoman with impunity. Her dragon wouldn’t permit it but a sound thrashing was what Kylara badly needed.
McCaffrey, Anne. Dragonquest: Volume II of The Dragonriders of Pern (p. 76). Random House Publishing Group. Kindle Edition.