The Custodian from the Black Lagoon

Somewhere in the dark caverns beneath the school lurks the custodian. Is he really a dark phantom figure wreaking havoc through out the school, making it boil hot all summer and freezing cold all winter? They say he's mechanically challenged too. He can't even change a light bulb with out blowing off the ceiling. The school's definitely in a fix with this custodian around!