[18:34] -Spector-:
Better idea than a captcha - have a hidden field that should never be filled out and is hidden from users (css: visibility: hidden;). When the bot parses the page it'll put something in the hidden field and when the form is submitted you can automatically just reject it
[18:35] -Spector-:
You could also have it return a 200 OK response so it thinks it was successful..
