Is There Such a Thing as "Codependent Anti-Humility"?

What's the opposite of humility? And by humility, I mean the good, genuine variety.

Humility means not thinking too highly of oneself, or not thinking too much of oneself.

Anti-humility can be typified by super-inflated ego, a person who thinks every good thing is attributable to them. It's easy to think of examples of this person, right?

What about a person who thinks every little bad thing (burnt toast, being late for an appointment, forgetting to buy milk on the way home from work) is his/her fault? In a way, this is also thinking "too much" or -- more precisely -- too often of oneself.

The person who thinks the world owes him continual thanks for his wonderfulness is deceived. But so is the one who lives in a perpetual state of apology. The toast was burnt? Maybe the old toaster is losing its timing. Late for an appointment? Maybe an accident tied up traffic. Forgot the milk? After a long day at work, it's no surprise that the only thing on your mind is getting HOME.

Humility, in light of emotional well-being, is a balance between the extremes of over-inflation and painful deflation. It's being okay with things as they are. Being okay with me, as I am.