I’m about two seconds from collapsing from dehydration and heat exhaustion when a rest area appears on the side of the road. The old, creaky bus I’m driving pulls to a stop in the parking lot. My sister Sam and I teeter into the store on the hunt for something cool to drink.

“Can I get, uh, twenty on pump four?” I ask as I pull out my wallet and a couple of bills. Sam sets our drinks down on the counter.