The rupee scratches the inside of the giant blue piranha plant. It gives a little cough (but because it's so big, it's really a massive cough). Tthecreator flies up into the air, sailing off into who knows where. He probably won't survive the fall. Unfortunately, that means I can't gather his soul, because he won't die inside my soul eating plant.
On the plus side, his rubber ducky was consumed by the plant. I gain 1 soul. It's a rubber soul, but hey, that's something!