What is the weirdest captcha you've ever gotten?

EDIT: Thanks to u/HORSES_ARE_NOT_REAL here is some clarification: A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can't http://www.captcha.net/images/recaptcha-example.gif