We had a pumpkin on the floor for awhile. I thought nothing of doing this since we hadn't carved it. It was just sitting there to look festive. Well, this morning I went to move it and discovered that it was completely rotted in the back and left a bad 'rot stain' on the hardwood floor! I tried scrubbing it off but it won't come off. I'm especially worried because I'm renting this house and moving soon. I just want to get the stain off.

Any ideas on what I can do about this?

Much appreciated.