The Sewer Gas Ballad

So today I was supposed to write a ballad about my neighborhood.  I spent all day thinking and plotting and trying to rhyme before finally coming up with this gem:

The lunch bell rang, and 
So I departed,
And that was when
The smell got started.

I emerged from a
Wonderful lunch-time break
To find that the office
Smelled unbelievably rank.

Was the bathroom to blame?
It’s certainly gas…