Гленн Хьюз об одном эпизоде с участием Дэвида Ковердейла в 1989 году
(Daniele Purrone's Radio interview, November 2000)
"... Once during recording "Slip Of The Tongue" there was a sign on the door saying: "Do not enter. David" so of course I entered and there was David having oral sex with his girl-friend. David asked me to wait outside and I replied: Old mate may I hold your cock?"