but hard have such great men as he is been to win in their houses , even when they were set on with more men ; as the case of geir the priest and gizur the white shows well enow ; for with eighty men they fell on gunnar of lithend in his house when he was all alone , and some were hurt , and some slain , and they must needs draw off till geir the priest by his cunning found that gunnars shot was spent .