You rush to the side of the roof to vomit over board

You feel the surge, the urge to purge. You run to the roof and vomit over board, the acrid goo gurgling up and falling onto the pavement like yellow brown rain. Some of it gets on the zombies. They are oblivious. Some seem to sniff the air.

1. You hang out on the roof
2. But your not done puking