There is no need of wiping ones taile (said Gargantua), but when it is foule; foule it cannot be unlesse one have been a skiting; skite then we must before we wipe our tailes.
1653, François Rabelais; Thomas Urquhart, transl., “How Gargantua's Wonderful Understanding Became Known to His Father Grangousier, by the Invention of a Torchecul or Wipebreech”, in The First Book of the Works of Mr. Francis Rabelais, […], London: Printed [by Thomas Ratcliffe and Edward Mottershead] for Richard Baddeley, within the middle Temple-gate, OCLC 606994702; republished as The Works of Mr. Francis Rabelais, […], volume I, London: Privately printed for the Navarre Society Limited, 23 New Oxford Street, W.C., OCLC 39370427, page 45