When Google Ads go bad

It's often quite instructive to look at the adverts that Google pops onto pages. As a web author it gives you a very quick feel for what Google thinks your page is about, and they're useful when you're hunting around looking for the information that you need. However sometimes they do get it fantastically wrong. I was recently hunting around for book images, and Google took me to the Chalet School Books webpage which is a fan webpage for information about (I presume) a series of books for children about a boarding school. All well and good until you look at the advert that Google has placed on the page:

'Sexual Abuse victims' indeed!