Valar Morghulis (210)

[LordRush]

I cant wait till Tywin finds out Cersei tried to have Tyrion killed, and also Arya is not in Kings Landing! His reaction will be priceless. Let the condescending lecturing and ***** slapping begin!

[Skydiver]

I dunno....I think Joff would just tell the hound to kill tyrion. Joff has all the spine of a jelly fish

[Pym]

Think it was Cersei she hates him and is still upset about her daughter being traded off .
Dont think Joffrey would have the guts to kill him himself.

[DemosCat]

Agreed. Subtlety is not Joffrey's strong point. If Joffrey wanted Tyrion dead, we would all know it. Joffrey would just point a finger and scream, "Kill him!" and not care who witnesses his outburst.

Having Tyrion killed in the heat of battle has Cersie's fingerprints all over it.

Edit: A comment about Arya's state of dress. I agree under normal circumstances, once Arya was revealed to be girl, there would be an expectation she should dress as one. However:

1) This is a middle ages-like era; clothes are relatively expensive and hand made. It's not like she can run out and go shopping, even if she had the money.

2) In the real middle ages, most people only had one - maybe two - sets of clothes and wore them daily until they fell apart. Wearing the same thing day after day was normal.

3) She is a prisoner in a war zone. The Lannister men have no problem being brutal to women prisoners. Tywin Lannister finds Aria amusing, but that's the extent of it. She is still a prisoner, and no one is going to supply wardrobe accessories to prisoners.

FYI, during the US Civil War, a few women did join the ranks as soldiers, but they could only get away with it by pretending to be men, dressing like men, etc. If found out, they would be discharged, but it's not like anyone had women's clothing handy to redress them before sending them on their way.