"How is it a brothel happens to have a secret entrance?"
"The tunnel was dug for another King's Hand, whose honor would not allow him to enter such a house openly. Chataya has closely guarded the knowledge of its existence." (emphasis by me)
When I read it this time around, it just hit me like a ton of bricks. The Hand in question can be no other than Tywin Lannister himself. Then everything else just made sense; his hatred of Tyrion, and Shae being in his bed the night Tyrion killed him.
Now I know there have been other Hands, so let's look at each of them. (I narrowed it down to Hands who were around while Chataya has had this establishment. So I say it's about a 20-25 year period.)
- Ned Stark - doesn't frequent brothels.
- Jon Arryn - fairly certain that he didn't frequent brothels.
- Jon Connington - was out waging war for the Mad King.
It explains Tywin's behavior towards Tyrion. Not only did Tyrion inherit Tywin's intellect, but he also inherited his propensity to sleep with whores. It explains Shae being in his bed and for who-knows how long. It explains the resentment he harbors towards whores. Tywin hated this particular personality trait of his, but he was too weak to fight it in himself. So instead he took it out on the whores and especially his son. He sees Tyrion as his own walking, breathing weakness. Tyrion really was a curse inflicted on Tywin by the Gods. Hence, the awful smell during his funeral. Tywin was a major-league hypocrite. As my mom likes to say, "he was preaching morals with no clothes on."
Seriously, we can go in so many directions with this. Do you agree/disagree? Let me hear your thoughts.