a little creepy

[dannymccash]

Last night, coming home from work, I found this poem taped to the window of my front door.

We had some electrical
problems. So,
we had to let our-
selves into your apt.
to shut off the
main breaker.

Sorry for the intrusion,
and don't forget to
reset your alarm
clock.

Cheers,
Jeff.

I don't get the rhyme scheme.