I get annoyed when minecraft crashes or I have to fix a java problem to get it back up and running. I also hate it when your on a server and your CoOwner and ppl are like plz plz plz aandmin and op mee plzplzpzlzpz...
Or when one of your buddies uses a wand and destroys the whole spawn by accident and doesn't know about undo.

Wow! Those all seem annoying, I also get annoyed when I walk into my hotel (on multiplayer servers) and find an enderman in my room/ restrante!

Skin and texturepack thiefs
My bro saiya makes skins, and like 5 people have already tried to steal its and be reported

To much homework. (I havent have time to play minecraft the last week! Stupid homework )

when a creeper and griefer team up and pwn me

When endermen hide grass blocks in my house >.>

When im mining and a creeper blows me up and I lose all my iron ore...

how many times I get shot in the knee...

I get annoyed when people join my server and complain about the server being buggy when really its a common minecraft bug