The townhall meeting includes complaints about various externalities associated with parks including frisbees and dog feces. The Baraguá delegation describes the command and control approach used by his country when citizens impose externalities on others.
The citizens of Pawnee drink from a water fountain by placing their whole mouth on the nozzle. Ann correctly points out the externality in the situation that by kissing one water fountain drinker, you’re kissing them all.
The pollution from the local factory creates a beautiful sunset, but it also gives people asthma.
Ron finds a typewriter out by the dumpster, but the noise of the machine bothers everyone in the office.