Pillow fight

Every night in the dormitory, there’s a pillow fight.
No, it’s not coeds blowing off some steam.
It’s some nasty fighting between the ghosts that haunt the building.
Sometimes, it’s so bad, the house master has to call the campus police.
A pair of exorcists enter the building, and after a few minutes, the noise ceases.
“Why can’t we get rid of those spirits for good?” asks the headmaster.
The exorcists shrug. “You’d have to tear the building down,” they said.
Besides, exorcism costs the same as bug extermination.
Compared to building a new dormitory…
The headmaster writes another check.