I got a used 99 Accord. The owner gave me two keys but failed to inform me one was a proper key and one was just a cheap copy they used to unlock the doors if they locked the key inside. The imobilizer light came on, and now the cheap key is stuck in the ignition. How do I get it out?

While I was a licensed lock smith for years, I never had knowledge of the newer electronic ignition keys. Having said that, there really is no reason that the non chipped key should be stuck in the ignition unless it is the wrong key for the vehicle or if the ignition itself is worn out inside. The "proper" key would only have a micro-chip inside the black key head that syncs up with the cars computer and either allows the car to start or keeps it from starting because the chip is not communicating with the car's pc., hence the immobilizer light would be on. Try squirting some WD-40 into the ignition slot around the key using the little red straw that comes with the can, then gently jiggle and work the key around while trying to pull it out. Point of info for you, many model year Hondas had an ignition recall for faulty and worn out defective ignition switches. Do you know if the recall had been done on your car?