You get a call from your wife on the way to the fill it up saying "That engine light just came on when i was going through the back roads to the gas station."

Of course, I'm the one who ran the tank down on the way home yesterday so now I'm feeling really great.
I pulled the code a few minutes ago and got a "P1119 Oxygen Sensor Heating 2 Ahead of Catalytic Converter - Below Lower Limit ". Huh???

A little research shows the light only comes on when this code happens along with a misfire. Well, that makes sense because the "back road" is a curvy road and she doesn't have the lightest foot, so I'm sure it pulled in some air instead of fuel a couple of times, hence....misfire.
Cleared the light and all seems to be well. Just don't try this at home and maybe you won't get the call.