Any action that leads to suffering is bad. Anyone suffering mentally is experiencing dis-ease. If you have a lasting or recurrent desire to inflict suffering on

Any action that leads to suffering is bad. Anyone suffering mentally is experiencing dis-ease. If you have a lasting or recurrent desire to inflict suffering on another for reasons that most reasonable people would consider unjustified or using methods that are excessive, then you are probably mentally ill. If you act on that desire you're definitely mentally ill.