In attempting to reset a password in Google Analytics yesterday, I came across the following CAPTCHA images (those images of warped letters you have to make out to prove you’re not a computer, spider, or robot of some kind).
All I can say is… WTF?
I ended up forgoing the task and using the audio option (for the visually impaired). The woman calling off numbers to me amidst the crackling of static and the tuning of instruments was a far less challenging task.

