A very dilute preparation of Guinness

'Annakin, I need you down here!' My son is watching the Star Wars: the Clone Wars animated cartoon TV series. He repeats this line, trying to capture Obi Wan Kenobi's particular vocal intonation. That is to say: my son is doing an impression of James Arnold Taylor, who in turn is doing an impression of Ewan McGregor, who in turn was doing an impression of Alec Guinness. My son's rendering of the line is, it strikes me, a very dilute preparation of Guinness.