Book 5 Chapter 10 of Tom Jones.
This is part of an ongoing project in which I will record and post one chapter per week of Henry Fielding's Tom Jones over the course of four years.
This chapter finds Tom wandering around Allworthy's lands in the drunken revel in which we last saw him. His thoughts turn to Sophia, and he extols her virtues at length. Of course, Sophia isn't around, but Molly Seagrim is. Molly is hardly as beautiful or glamorous as Sophia ("bedewed with odiferous effluvia" are Fielding's words for it), but Tom's feeling amorous, and, well, drunk off his ass.
So, of course, this is the precise time that Blifil and Thwackum happen to be wandering by, and Blifil feels compelled to ambush Jones.