I've never liked the idea of automatic tipping.

From CBS News via Yahoo!
Several New York City restaurants including Applebee’s, Olive Garden
and Red Lobster, are being named in a lawsuit over alleged deceptive
billing practices, "CBS This Morning" reports.

The network posted images of an Olive Garden check with a line for
an “automatic gratuity” of 18 percent added to the price of a meal,
as well as a place to add an additional tip, regardless of the number
of diners. An Applebee's check added a 17 percent automatic
gratuity, saying it was "payable at guest's discretion."

“They want to squeeze that extra little dollar that they can out of
everybody,” Evan Spencer, the lawyer who brought the $5.5 billion
class action lawsuit, told CBS, adding, “A tip and a gratuity are
exactly the same thing,”