In explaining what exactly will happen if the federal government shuts down, Miller-McCune's Emily Badger points out one malodorous consequence in 1995:

During the last shutdown, The Washington Post noted one particularly ugly impact -- manure piled up in a parking lot of the National Zoo when it couldn't be transported elsewhere for composting (zookeepers, however, did continue feeding the animals). The zoo says it has updated its waste-disposal plans in the event of another shutdown.

Thankfully, it won't happen again. But the manure will have to be piled somewhere, jut not in the parking lot, The Washington Post's Ed O'Keefe reported in early March:

Either way, if another shutdown occurs -- still a possibility if budget negotiations between Republicans and the White House don't go well -- the zoo vows not to store any waste in the parking lots, the spokeswoman said. The waste, now composted at a facility in Brookville, Md., would be stored at a spot on the zoo's campus, far away from the parking lots and adjoining roads.