When a man is known to suffer from a sadly contagious disease, none of his friends will come near the house. There is little need to warn them off, they are all too alarmed to come near, Why is it men are not as much afraid of the contagion of vice? How dare they run risks for themselves and children by allowing evil companions to frequent their house? Sin is as infectious and far more deadly than the small-pox or fever. Flee, then, from every one who might lead you into it.