We successfully sued Delta when we flew ComAir (Delta subsidiary) and they lost our bag and then gave us the runaround.
Did it in local small claims court, and Delta hired a local lawyer to represent them.
Showed up for our first date, and Delta had filed a motion to postpone (they didn't show up the day we did, but the day before).
Showed up for the second date, and the judge said to the Delta lawyer "don't you want to settle with these nice people?"
Delta lawyer said no. We were given a third court date. Showed up again and again the judge asked Delta lawyer "Don't you want to settle with these nice folks?"
Delta again said no. Judge got off his bench, went into his chamber. He came walking out while thumbing through a law journal. He found what he was looking for, walked over to the Delta lawyer, put it on the table in front of him and pointed to it while asking "are you SURE you don't want to settle with these nice people?" To which the Delta said "Yes".
I never found out what he refered the lawyer to, but we had an offer within a couple of days, and our settlement check within a couple of weeks.
We lucked out, we were graduate students at the time, so we had access to a lawyer at the University. He couldn't represent us, but he told us what to do and what to write. Luckily for us, his first job out of law school was representing the airlines.