I love this odd site for surplus stuff.  They sell one thing a day, until it's gone, most of the time.  www.woot.com

This is from an ad for a product today, I think it was a piece of computer hardware.

"They say intermittent positive reinforcement is the strongest kind of conditioning. You want your lab rat to really lay into his food bar? Have it dispense a reward some of the time. Want your kid to be a full-time whiner? Give in--not all the time, but once in a while.

"This is the behavior conditioning model that keeps you refreshing your own blog over and over, too. Almost no one ever reads it--still fewer people ever post comments, but those rare and special occasions feed your nearly bottomless well of hope that the next time you reload the page, you'll see that some minor Net celeb visited, read your article about getting ripped off by the phone company, and posted a note of solidarity with your cause.

"Nope, not this time. Nor this time. Not yet. Not yet. Nor yet. Nor yet. Nor--hey! Oh, no, it's just some spambot selling loin-stiffening pharmaceutical agents. Nothing yet."