Conversation so far:
Did Quaid participate in theater?
In 2004, Quaid appeared on stage undertaking the starring role of Frank in the world premiere of Sam Shepard's The God of Hell.
did he participate in any other roles?
It marked the second time that Quaid starred in a Shepard play, the first being the long running Broadway hit True West.
was Quaid successful?
was well-received and -reviewed by New York City's top theatre critics.
What else happened with Quaid in theater?
In February 2008, a five-member hearing committee of Actors' Equity Association, the labor union representing American stage actors, banned Quaid for life.
why was he banned?
The charges that brought the sanctions originated in a Seattle production of Lone Star Love, a Western-themed adaptation of Shakespeare's.
what were the charges?
banned Quaid for life and fined him more than $81,000.
were there any other charges?
all 26 members of the musical cast brought charges that Quaid "physically and verbally abused his fellow performers.
what was Quaid's response to the charges?
Quaid's lawyer, Mark Block, said the charges were false, and that one of the complaining actors had said the action was driven by "the producers.
Did his lawyer do/say anything else?
Block said that Quaid had left the union before the musical started, making the ban moot, and that Quaid only participated in the hearing.

Question: why did he participate in the hearing?
Self-contained rewrite: Why did Randy Quaid participate in the hearing of the charges of abuse brought against him?