Sour definitely, but most candies never are sour, but I remember this one candy called Warheads, it is the single most sour candy I've ever tasted, all the other combined will never match up to it.
Needless to say, that was the single stupidest thing I've ever done. It beat out cutting my fingertip off with a meat cleaver.
Two questions. Could it have possible been that bad? What exactly were you doing that you chopped your fingertip off? Yes, the obvious answer is cutting meat, but with you one just can't tell.