Repetition- bullies tend to repetitively bully the same victim.
One of the pillars of treating mental health disorders is empathy towards the patient. The reason for this is that empathy goes a long way when treating different disorders and it enables the practicioner to provide better service to his users. Various treatment approaches put an emphasis on empathy as an important concept that should be practiced.
Gall bladder, pancreas, liver.
they secrete digestive enzymes
I think it's Homeostasis. If not then I apologise.