Q:

Captcha with $, #, £, €, &, % characters?

Is it a good idea to have a captcha with $, #, £, €, &, % characters in it? (the users will be university students ("freshman"?).

A:

No, See for example the Apple US keyboard How do you enter £ and € ?

A:

What would be the point? Aren't regular captchas good enough?
Also, remember that different users may have different keyboard layouts. What if I don't have € on my keyboard, for example?

