Coffee anyone

I know you will be surprised and even scared to hear this. The coffee vending machine in the pantry is haunted. It makes strange noises when someone tries to disturb its slumber by pressing a button. The noises can vary from howling of a wolf to the whirling of a turbine. Depends on its mood, basically. It is obvious that it does not want disturbance, but no one seems to mind, except the security guard who was on duty on that fateful night when he saw the coffee machine walking down the floor at 2 am. The guard was admitted and had to be dripped half a gallon of coffee.