Four-year-olds and Gasoline

What's with this kid who insists on getting into Grandpa's gasoline cans? For some reason he finds pouring gas on the driveway an acceptable outdoor activity. He'll ignore his battery powered four-wheeler, by-pass his bicycle and turn his nose up at the trampoline. Even the mud and puddles cannot entice him away from the gasoline and fumes. He can't afford to lose any cells from his puny little pea brain.