Valdis hated shower 'shower time' after tests. He was not allowed to bathe properly for concerns of escape, and no one in the lab dared get close enough to clean him otherwise. Instead they always sent this robot to spray him down with a hose. Sitting in his cage, he had little to do but wish ill on those around him, including the robot. It was complicit, following orders. Curious, the hybrid allowed his tail to appear, instantly attacking the spray nozzle of the hose, spurting water everywhere.
The ‘robot’ does not react when the water splashes. Robot is waterproof... enough. Robot is sure of it. Robot stares at tail, scanning it for a split-second that it is visible. This humanoid is nude, as he must be to clean -- most are compliant. Cleaning is also watering time. Robot waters the other creatures until they have drank, and finishes the spraying the body.
Humanoid gives a lot of trouble. Robot is aware, Robot anticipates the actions, but not everything is predictable. As water hits the robot, something starts to leak out of the armor and cloth. First, black, oil, or grease, and then, something brighter. Red. Blood. It was dark still, a stench of demonic blood, but clearly washing away with the erratic shower spray on him.
Robot doesn’t pay it attention. Robot continues to spray the humanoid down, as best they can, avoiding the tail as much as possible. In the end, the Robot was more showered than the lab creature, so finally, the Robot spoke.