June 22, 2012: The kind of thing at these kinds of things.
From the Gladbrook Corn Carnival website:
The Corn Carnival Corporation Board has made a tough decision based on what we believe to protect our community members, visitors, sponsors, and all who make our annual celebration a success, that we cancel our 2020 Corn Carnival 4-day celebration for June 18-21. Please know that the decision was a difficult one to make for everyone but we also know it is in everyone’s best interest due to the ongoing COVID-19 pandemic.
If we can’t have a few hundred people milling around a food line and a bingo tent, be afraid. Be very afraid.
UPDATE 6/13/22: There was a Corn Carnival parade in 2020. It was the only thing that happened that year, but has been deemed sufficient enough to continue the streak.