1.   He has studied rockfish from Alaska to Southern California and has observed some quirky behavior.

2.   Stories abound of his obsession with sports, his off-color speeches and other quirky behavior, but now he is quickly earning a reputation as a ruthless dictator.

3.   Such quirky behavior, endearing though it may be, does little to foster the image of a rock musician living in the fast lane.

4.   They often are highly intelligent, exhibit quirky behavior and become obsessive about one or two topics.