Wasps

And then there's this:

CRANSTON, R.I. (AP) — More than two dozen students and teachers at a Cranston middle school were stung by wasps during a fire drill, and one child was taken to the hospital.

Cranston Schools Superintendent Peter Nero said about 30 students and teachers at the Western Hills Middle School were stung Monday morning — some multiple times — when a yellow jacket nest was disturbed as students were walking outside.

He says the school contacted the parents of all children who were stung and recommended out of caution that they be sent home for the day.

Nero said the school has canceled all physical education classes for the day, and that exterminators applied a non-toxic chemical spray on the hive.