About a week ago I gave someone a negative reputation as I had thought they were being rude to myself and co-workers. I cannot, for the life of me, remember who this was or what thread it was. It was straightened out within the thread and I'd like to request the negative reputation I gave out be removed but I don't know who this person is.

So my question is two fold; is there anyway I can see who I have given reputations to and could someone undo that recent negative reputation I gave out?

Thanks