To preface this, I was a complete idiot.
My 2002 Honda Accord was a couple thousand miles over the recommended oil-change period and I was being pestered about checking the oil, as it could be fairly low and dirty by that point. I checked the dipstick and completely misinterpreted the dots provided, believing that the oil was in fact dangerously low.
To put it simply. The oil wasn't low, and I added a full 5 quarts to it.
Of course I do this when I am a solid 20 miles away from my house and did not have the idea of calling AAA to come assist, so as I hop on the highway the engine starts burning oil. I pulled over until the engine stopped smoking, but I did complete the 20 mile drive on this stupidly high amount of oil. Several times during that drive I could feel the car lurch, seeming as though it was starved for air.
The oil has already been taken out and replaced with the proper amount, but I fear the amount of damage that could have been done to the engine. I'm aware similar questions have been asked more than enough times, but I haven't run across one where the car had been driven a fair distance with the oil still in the engine.