I recently took a flight from LGA to GSP. As this flight uses a commuter airline, we had to board the plane via a shuttle bus from the terminal. We were driven onto the tarmac and pulled up next to one of many planes and boarded as instructed by the grounds crew. I had a feeling that this was NOT our plane as no luggage was being loaded.

Upon entering the aircraft, I noticed that the plane had a first class cabin while the plane we were supposed to be flying was an E-135 which has no 1st class cabin. I asked the flight attendant where the plane was going and she said Savannah. I said, "Well, we are going to Greenville." The flight attendant was rattled and starting yelling, "you can't be on here!" She announced to the passengers already seated to please exist the plane. We all walked back down the stairs to the tarmac and had to wait in the rain at least 5 minutes while the ground crew decided which plane was ours. Once they stopping yelling at each other trying to place blame, we walked across the tarmac to our plane. Fun stuff, no?