I built many more Roller Coasters than I usually do in this level and as such had a huge problem with people vomiting all over the place. I hired many more Handymen as a result and was awarded the cleanest park in the country award. I don't believe I have ever been awarded that before now.
https://docs.google.com/file/d/0B1oRZK7IvLFZNnB2UlRIREJKNTg/edit
If you haven't played Roller Coaster Tycoon I recommend you give it a shot and its not too expensive either.
http://www.gog.com/gamecard/rollercoaster_tycoon_deluxe

This weekend they are all on sale at GOG.
Roller Coaster Tycoon Deluxe $2.09
Roller Coaster Tycoon 2: Triple Thrill Pack $3.49
Roller Coaster Tycoon 3 Platnium $6.99
http://www.gog.com/promo/atari_weekend_promo_120713