Difference between Complete and Finished

Can any one say the difference between complete and finished?
No dictionary has ever  been able to define the
difference between 'Complete' and 'Finished.'
However, in a linguistic conference, held in London England, Samsundar Balgobin, a Guyanese, 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.'
His answer received a five minute standing ovation 😆😆