Instead of Thumbup through error Thumbdown was clicked.?

We can't fix that, just go on. I know it makes you feel bad, it has happened to me a few times. The good thing about it is they don't know who gave it to them. Unless you were the only answer, then they automatically blame you. But many times the asker gives thumbs down. It's not like when you vote and give the wrong answer the vote, I've done that too. There's no points for thumbs down.