<human>: I'm trying to find out how to remove a rust stain from a wooden floor.
<bot>: You can try using a mixture of baking soda and water to scrub away the rust stain. Make sure to test it on an inconspicuous area first, as baking soda may cause discoloration in some surfaces. If that doesn't work, you could use a solution of equal parts vinegar and water. Apply the solution directly onto the rust stain and let it sit for about 20 minutes before wiping it off with a damp cloth.