Update:
Earl is probably fuming at somebody to blame when missing a shot. Isn't this why he wasn't invited back to the Mosconi Cup? Great player. Uncontrollable outbursts. Not only does he get angry with the audience, but has even told a referee to shut up.
At the end, Earl was standing at the table, getting bombarded by people with photographs to sign. He did.
So...he's not that bad.