Vandalism - is a criminal damage to property. It includes breaking stalactites and stalagmites or just trashing a cave and make sure you don't touch the cave formations with your hands. There is oil on your hand that will kill cave formation. Vandalism may be an act of revenge or a way to disturb other living things. There are laws in Missouri to protect caves from being vandalized.
Vandalism is punishable by fine or imprisonment.
Know the people you are going with. Know the cave and its hazards . Let someone know where you are going. Don't mess with the wildlife. Leave the cave in the same condition that you found it.