When I came back from Munich, it was September, and I was Professor of Mathematics at the Eindhoven University of Technology. Later I learned that I had been the Department's third choice, after two numerical analysts had turned the invitation down; the decision to invite me had not been an easy one, on the one hand because I had not really studied mathematics, and on the other hand because of my sandals, my beard and my "arrogance" (whatever that may be).
Dijkstra (1993) "From my Life" (EWD 1166).
E.W.Dijkstra Archive: "From my Life" (EWD 1166)[cs.utexas.edu]