Hmm...this is a good thing someone asked me the other day. What is my highest displeasure. But amongst it all...I would say Annoyance.

guilt, disappointment in myself and emptiness.

Embarrassment :< It displeases me most of all.

Ignorance.
Well not plain ignorance, nobody knows everything. But the kind of ignorance where people will stubbornly believe something that's plain untrue and argue (usually loudly) about it when the real truth is right in front of them but they'll refuse to see it.

Pretty much what Ebil said. That and when people hate something because of ignorance.

MOUTH BREATHING

D: I can't stand it when people do that

But... displeasure for me... Spending a lot of money at one time. ^ w ^

I always second guess things. :[

People who won't just leave you alone when you tell them to, or make a HUGE deal out of it. :/

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Maybe one of my displeasure is self piety, and comparing myself to someone, that I know its unhealthy.

Stereotypical people. I consider myself to be one of those people who refuses to fit neatly into any stereotype. Now, I know a lot of people would consider me a nerd, which is fine (NERD PRIDE!!!!) but I am also other stereotypes as well. lol.

My greatest displeasure is "Shaken baby syndrome". I have worked with several children who would have been running, playing, growing, and learning if some adult had not taken their frustrations out on them when they were tiny. It honestly breaks my heart.

I have a lot.
Annoyance, embarrassment, being compared to someone, and more.
:<

Money displeases me the most. The economy in the U.S. is making it harsh to keep the balance of making and spending money.

Hmm... My own ignorance, I mean, I don't expect to ever know everything, but I hate having to ask, "What does that mean?"