But beware. While Facebook lets you anonymously eliminate your "friends," the Burger King application notifies them when you "sacrifice" them in your quest for free fast food.
The Whopper Sacrifice ad campaign, spotted by Adweek, sends a message alerting your former friend that the sentiment you carry for him or her is nothing compared with the sizzle of a Whopper.
According to the Whopper Sacrifice web site, more than 12,000 friends have been bitten the dust -- all for a (roughly) $2 Whopper.
In an economy like this, is anyone safe?