OK, ignore the people who say that you don't have to get all 10 droppings before the lights go out. Notice all the people who say they could only find 48 droppings -- those are the ones who only got 9 in the beginning! Trust me; if you don't get 10 before the lights go out, just start over (you can start from the "The Tour Begins" level).
I got all the achievements well before my 25th play -- except for the Bourgeois achievement. I played SIXTY SIX GAMES and only even came close to getting it ONCE. What the heck am I doing wrong???