11.   And before that, John Elway called it quits.

12.   And I guess the program management problem for them is to decide when to call it quits.

13.   And faced with the prospect of repeated gallops through the noonday heat and dust, most donkeys might kick up their heels and call it quits.

14.   And one by one, regional discounters called it quits.

15.   And there was the worry that he might not know when it was time to call it quits.

16.   And when those marriages do not work, a divorce may become final before one of the parties realizes that the other has called it quits.

17.   Another setback before Wimbledon, she swore, and she would call it quits.

18.   Arie Luyendyk, who moved to Scottsdale eight years ago, also decided to call it quits.

19.   At one point, Colter says, the couple decided to call it quits.

20.   Ben Crenshaw played just five holes of a practice round before calling it quits.