Bedbug of Humanity

What is the most dangerous characteristic that is the most difficult one to be removed once one's personality is affected by? They are all terrible, from lying to jealousy. I was thinking about them, not because it is Ramadan and an opportunity to devote a couple of seconds to reviwing our peroformance, but honestly which one you would try to clean if you had all. I go with "pride". Even when I try to ameliorate its effect, I get a sense of vanity, a feeling that I am doing a great job, I am a real human! What the f... It is such a complicated bedbug. An insect in the soul that can be transformed into different shapes. Its main defect is probably to stop you from going ahead, from developing and becoming better. Ridiculously, I am suspicious that I have it now when I write this. Damn it...