What Have I Done . . . in Buy & Sell Posted January 21, 2014 · Edited January 21, 2014 by Ivan Viehoff I got it from AgnesShe got it from JimWe all agree it must have beenLouise who gave it to him Now she got it from HarryWho got it from MarieAnd ev'rybody knows that MarieGot it from me... I started listening to Tom Lehrer when I was but a mere stripling, and it took me a long time to work out what this song was about.