Uhm, well -- let me paint this a different shade of disaster...
What can be worse than three kids locked away in a car on a road trip?
How about three twerps locked underground 300 feet below human existence for hours and told not to touch ANYTHING?
With all kinds of rare National Security stuff you can't touch within inches of my gentic offsprings' clutches and with one drop of grimy oil from my spawns' hands, millions of years of growth will come to a stand still and life as we know it will cease to exist. This is how vaca's should be spent.
The cave enthusiast almost pushed him in here.
So did his dad.