That sounds too complicated and fragile for me to use.
Really, I was just getting at that you should probably label the field as "Do not type anything in this box" so users with assistive devices don't get trapped. I'd also provide a useful, non-cryptic error message for if the captcha fails.
Really, I was just getting at that you should probably label the field as "Do not type anything in this box" so users with assistive devices don't get trapped. I'd also provide a useful, non-cryptic error message for if the captcha fails.