PlayThru CAPTCHA Alternative: Achievement Unlocked: You’re a Human!

I don’t sign up for a lot of things – one of the many benefits of being antisocial and reclusive! – but when I do, I hate the CAPTCHA part. I know that accomplishing it is very simple, but there are just times when the text it wants me to spell is so mangled that I couldn’t possibly guess it right, making me doubt if I am indeed a person.