Adolf Hitler, despite being the most evil force ever to befoul mankind, was also a kind and conscientious employer.
You see I have put gloves on, that I may not befoul myself by touching you.
They will close in on you tomorrow—you and all the dirty vermin that befoul these cliffs.
He, the officer, must befoul his person and derange his hours of rest and recreation, that others may enjoy.
Can anything be so bad as the living bush which bleeds and talks, or the Harpies who befoul Aeneas's dinner?
I could not prevent myself from saying, "Do you think it is nice to befoul your own nest?"
And they deface and spoil the beauty of the land and befoul the water courses.
Why, I would rather lose the power of speech for ever than befoul your ears with the record of my shame.
Self-consciousness compels such creatures to befoul their origin.