Trying to shame someone for their lifestyle, looks, weight, race, gender, sexual orientation, religion, etc, etc. Doesn't make you a "tough b****" it just makes you puerile and ignorant. Better yourself instead of tearing others down to make yourself feel superior.
People who think they are perfect and go around putting others down, belittling them, trying to point out weaknesses and using it in a very negative way are narcissistic. It takes a HUGE EGO to knock someone else down and hurt them when you yourself are full of flaws. Leave people alone. What is the point of going out and purposely hurting others other than to get your ego boost. Typical narcissistic behavior.