This was a couple seasons ago. Mark Dacascos, host of "Iron Chef America" was one of the contestants. His partner was Lacey. She got the flu & was extremely sick. She went home for the rest of their dance.
Instead, she was replaced by Anna, (who was already out of the running,) for a few rehearsals. Instead of working off of the choreography Mark & Lacey had already worked out, she REPLACED all Mark's choreography with (probably) an old dance of her's from a previous one she had already done.

So SHE didn't have to think or do anything new or put in any real effort

, Meanwhile Mark was overwhelmed

, and didn't dance very well.

He was sent home.
I don't even think Anna had any conscience about the whole thing.

She got paid for her time. She showed up. Mark wasn't
her partner.
Yes, me, too.