What is the most logical next event?

How to keep kids safe in bounce houses
Insist the operator stays on site.
Bounce houses generally are operated by workers who have been trained in how to properly operate the bounce house. However, that doesn't always mean the operator stays by the bounce house the entire time.
You should insist that the operators remain by the bounce house while the kids are using it. The operator should watch what is going on with the kids inside the bounce house.