"isolated instances of rebellion"
"a few stray crumbs"
"a stray calf"
"a stray dog"
"The gypsies roamed the woods"
"roving vagabonds"
"the wandering Jew"
"The cattle roam across the prairie"
"the laborers drift from one town to the next"
"They rolled from town to town"
"The child strayed from the path and her parents lost sight of her"
"don't drift from the set course"
"She always digresses when telling a story"
"her mind wanders"
"Don't digress when you give a lecture"