I was looking up the old saying "What's sauce for the goose is sauce for the gander" and I found it in this 340 year old collection of English Proverbs. This antiquarian bookseller has a copy for sale and that's where I noticed this great old proverb "He that woes a maid must fain, lie and flatter: But he that woes a widow, must down with his breeches and at her."
Apparently the originally published book had many such bawdy and ribald proverbs and the public outcry caused the author to republish a cleaned-up version of the book.
But he retained one bawdy proverb in the revised edition and apparently it is the one about Hunter Biden shagging his brother's widow!