No, stealing is "flat-out wrong." My life is a stretch of time from point A to point B. I willingly exchange a portion of that time in labor to create goods. Anyone trying to lay claim to the goods I have created is trying to lay claim to a portion of my labor, indeed a portion of my life. He can go straight to hell...
If he wants me to respect his rights to life, liberty, and property he'd best start by respecting mine. Once he takes the gloves off, the gloves are off...
If I ever go into business for myself, I intend let a pit bull with rabies run loose inside my business at night. Would you consider that a lethal security system?