I know the Google image search is one of the required elements for Topics, but I think that requirement needs to change. This disturbing image is one of the pics that popped up on my Pit Bull topic.
I don't think we need to be grossing our readers out or depressing them with that kind of content! That's certainly not something I would have chosen to put on the page.
I've never had problems with the Google image search before, but I'd like the option not to use it when it returns results like that. I think a well-selected Flickr photo would be much better.