In the moment my swarm drew close, she stabbed the knife into a wall-mounted fire extinguisher.  The pressurized contents spewed out in a plume, collecting on my bugs and blocking their path.  It disabled the largest ones and killed the smallest, eliminating a good ninety percent of the bugs I had in reach in an instant.  I was forced to back off, so I didn’t get the spray across my lenses or the fabric at my mouth.

She’d managed to avoid getting dirty, even.

Wildbow, Worm, 24.2