Where I was working in Heidelberg, this one group (rather good actually) played the same corner- hours on end. My commute into work was too early for them, but when I went out for lunch, or to go home, or for a coffee/beer/meal... the Andean Pan Pipe Band suddenly became the soundtrack for EVERYTHING I did. Wears on you after a while. I had a brief stint as a tour guide & the folks on the tour got a kick out of playing "who can spot the Andean band first" game in every city we visited.