To my knowledge, it has never happened in a TCG league, and most of the people are returning from previous seasons.
This is a rule. You DON'T do this. If you are out of the playoffs (either eliminated or never made it) you are done for the season.
I am in a 16 team league here at work (PD vs FD) and made the final 4. I just hope that none of the asshats pick up waviers this week that were bumped out this past week. lol