A is for Anne Arundel County, where it happened. B is for being careful, as officials obviously were. And C is for cat, specifically, the skittish cat that caused classes to be canceled Friday at a county elementary school.

While preparing for her students’ arrival, a teacher at Richard Henry Lee Elementary School in Glen Burnie found a cat in her classroom about 7:30 a.m, a school system spokesman said. It had no pass, no owner to vouch for it and no other authorization.

School officials were notified, but the cat did not wait, darting away as such animals often do.

As students waited outside, animal control personnel arrived and searched the school, where classes for more than 480 students are set to start at 8:45 a.m.

They never did start. After an initial search found nothing, students were dismissed at 9:45 a.m., said Bob Mosier, the school system spokesman.

The administrator of the county’s animal control department, who by minor coincidence is named Robin Catlett, said school doors were open when her officers arrived at 8:15 a.m., making it less likely that the cat had been confined.

Some called the cat a feral animal, but Catlett could not confirm that, and its inoculation status was uknown. Mosier said it was hoped that the long holiday weekend would allow more time to corner the cat.