There were not wanting in almost every community members of the shiftless class of society that were always ready to obstruct the passage of fugitive slaves to the North, and whose most vigorous exercise was taken in the course of some slave-hunting adventure. The Rev. W. M. Mitchell, who had had this class to contend with in the performance of his underground work during a number of years in Ohio, characterized it in a description, penned in 1860, in which he sets forth one of the conditions that made the Northern states an unsafe refuge for self-liberated negroes. "The progress of the Slave," he wrote, "is very much impeded by a class of men in the Northern States who are too lazy to work at respectable occupations to obtain an honest living, but prefer to obtain it, if possible, whether honestly or dishonestly, by tracking runaway slaves. On seeing advertisements in the newspapers of escaped slaves, with rewards offered, they, armed to the teeth, saunter in and through Abolition Communities or towns, where they are likely to find the object of their pursuit. They sometimes watch the houses of known Abolitionists.... We are hereby warned, and for our own safety and that of the Slave, we act with excessive caution. The first discoverer of these bloody rebels communicates their presence to others of our company, that the entire band in that locality is put on their guard. If the slave has not reached us, we are on the lookout, with greater anxiety than the hunters, for the fugitive, to prevent his falling into the possession of those demons in human shape. On the other hand should the Slave be so fortunate as to be in our possession at the time, we are compelled to keep very quiet, until the hunter loses all hopes of finding him, therefore gives up the search as a bad job, or moves on to another Abolition Community, which gives us an opportunity of removing the Fugitive further from danger, or sending him towards the North Star...."[709] [709] _The Underground Railroad_, pp. 13, 14.