mindset.

yourdp:

You set the time and days.  If you attempt to send an e-mail within your self set danger zone, google with ask you a series of mathematical questions ranging in difficulty from 1-5.  You pass, your drunken love note gets through the gates.  If not, it will have to wait until morning which is probably for the best anyway.

Now if they could only pass off such technology for cell phone texting.

This could be a joke, but I actually do think people would make use of this feature…