Bugs in the Bugspray
An angry cloud of gnats shoots out of the nozzle when the button is pressed. Examining the can more closely shows a dial on the bottom where the can is concave. The dial has labels for gnat (the dot on the dial is here), dust mite, fruit fly, housefly, black widow, radioactive tarantula, AIDS-III-carrying mosquito, and giant man-eating cockroach.
Exposure of this can to heat is contra-indicated.