Mex stops at the fourth house and uses the hose to refill his HydroMaster 4010, then seals the cap and looks around. It’s getting late; this looted suburb will throw the advantage to his opposition in a night fight.
At the end of a hedge, he spots one of them. She’s low, using a long tree shadow for concealment.
The rock he throws glances off that tree. She realizes it’s a distraction quickly, swings her own squirtgun around–too late. With a hiss, the 4010 pumps four rounds through her neck: fine sand in hyperpressurized water. She falls without a sound.