1.   Two years ago, when he was a high school junior in this old college town, Barrett Ruud of Nebraska made an impromptu visit to Notre Dame.

2.   USC players were stunned to get an impromptu visit from boxing legend Muhammad Ali on Friday night.

3.   Havelange was severely criticized in the media for the impromptu visit.

4.   However, that did not appear to be the main reason for the impromptu visit to the Chinese capital.

5.   Sometimes we also make impromptu visits to the producers and check them, or buy their products and do laboratory tests on them.

6.   Alexy himself paid impromptu visits to several churches around the capital, startling parishioners.

7.   Officials from the Montreal city police and provincial law-enforcement forces said officers planned to make impromptu visits to polling stations across Quebec to ensure order.

8.   Police stepped up their patrol in the streets of Montreal and elsewhere in the province and planned impromptu visits to polling stations to ensure order.