This is good! Just a few minor things left to neaten up, I think.
One would worry if it went ona day went by without one a troublemaker or two testing the tempers of employeesan employee's temper .
The use of first person (One) got confusing when you used "one" again, as a number this time, within the same short sentence...
hoping to be spared of their antics,
It is unclear to me whether "their" is the running kids or the librarian...
'Their' as Librarians - "hoping to steer clear of their wrath"
'Their' as the misbehaving kids - "hoping to be spared their antics"
pushed it down aisles
down the aisles.
Most days, I felt the routine dullness(??)ism of working at a library would never end.
You may want to consider striking this entire sentence and using the idea later...it really doesn't add much at this juncture.
At times I shelved and, while no one else watched, hid behind aisles to read novels labeled as "returns". Never did it occur to me that I would soon be leaving the silence of the adult section for somewhere far more interesting---and loud.
When no one was watching, I would put aside my work and hide behind the aisles to read the novels labeled "returns." I had become comfortable in my routine. It never occurred to me that...
"The children's section was more like an unconventional nursery rather than a quiet place to read. The children congregated around the computers, teased their neighbors, and
often even picked their noses
once or twiceon occasion, displaying a keen aptitude for multi-tasking. <sorry, the visual you provided was so funny, I felt compelled to add to it :) At the time, my position certainly seemed less than endearing; after all, insect and dinosaur picture books had replaced Shakespeare and Austen. But one boy caught my immediate attention, he was certainly different from the rest.
This part is charming. Hope this helps! Be back in a bit.
Blue skies!
Jeannie