What personality trait in people raises a red flag with you?

Several personality traits are found in people raises a red flag with me are untruthfulness, cheat, greed, anger, negative thoughts, and many more.

I careful mainly with cheater or fake individuals including friends, life partner, and many other persons that may harmful or red flag for me in the future. I also careful with greedy individuals that may be red flag or threat for me in the future life.

Anger is also personality trait in people that may be red flag or threat for me. I also careful with drunker individuals that may be red flag for me.