Complete vs. Finished

No dictionary has ever been able to define the difference between “complete” and “finished.”
However, in a linguistic conference, held in London some years ago, and attended by some of the best linguists in the world, a Guyanese named Samsundar Balgobin, was the clever winner.
His final challenge was this: Some say there is no difference between “complete” and “finished.” Please explain the difference in a way that is easy to understand.
His response was:
“When you marry the right woman, you are ‘complete.’ If you marry the wrong woman, you are ‘finished.’ And, when the right woman catches you with the wrong woman, you are ‘completely finished.'”