My not-quite-panic-but-something-similar hit this morning when not just one, but two of the remaining three students messaged me to let me know that they were not able to attend due to illness. COVID and the flu have been hitting our area hard recently, with the former knocking people down for days. I let them know that it was okay and that I hoped that they and their families would feel better soon. I also then sent out a group-wide message via my Remind account, begging for people to show.
Thankfully, they came through. By the time that we needed to do the cleanup, I had five students there helping, making the work finish quickly. Considering how well the dance itself went, I would say that we had a successful day.