I can't tell you where this came from, but I can tell you it's funny.

A reported riot broke out in a seed-y bar, in a seed-y part of town between seed-y playwrights Tracy Letts and Adam Rapp last night. Apparently, the two were having drinks when Mr. Rapp leaned over to Mr. Letts and 'let him have it' about the lack of brother on sister shtupping in Mr. Letts' plays.

"Froggy in Blackbird gets done by her dad, man. Her dad! Can you imagine that?" Rapp was heard to yell.
"You seen Osage County," Letts responded "Osage County is where incest lives!"

Our man in the field relays the final bits of dialogue between the two:

RAPP: Sounds like a fuckin' radio station. 'OSAGE COUNTY- WHERE INCEST LIVES!'

LETTS: What're you gonna do write a fuckin' children's novel about it?

RAPP: I don't write children's novels! I WRITE YOUNG ADULT NOVELS! Y A stands for Young Adult!

LETTS: And I thought that acronym only referred to your girlfriends!

We hear a few punches landed. When asked for comment the two stated that Martin McDonagh was a pussy and that if they wanted they could write a play that made you "fuck your mother," end quote.