Mixing Evils

Occurs when a person moves their bowels in a restroom during or after someone else has defecated, and filled the room with their stench.

A concerto of shitting and shit odors.

Drill Sergeant: "ALL YOU PRIVATES NEED TO GET MOTIVATED AND CLEAN THOSE LATRINES! Y'ALL HAVE BEEN MIXING EVILS AND NOT CLEANING UP AFTER YOURSELVES, WE AIN'T GONNA HAVE THAT!"