I was playing in my server with may0 and aleks95 in minecraft, but I had to leave for dinner or something, don't really remember. I came back to see that may0 had been spawning items and building illegal (if me and aleks were playing survival at that moment, spawning items was illegal) farms and other things. I got very pissed. I deoped him, left the survival and went to work on my rollercoaster (and before I continue, I have a rollercoaster fetish in minecraft and I hate when people touch my minecraft-y things), just to find out that may0 decided to build an house right where I had my rollercoaster and decided to blew part of it, and part of the way that goes up that hill.
I got mad. After argueing a bit he pissed me enough to ban him from my server. He then came to irc bugging me: Yoyo why did you ban me, yoyo unban me, yoyo I want reasons, yoyo that wasn't spawned, yoyo I was going to rebuild, I told him to stop and that I wouldn't unban him.
He continued, I kicked him from the channel. But surprise surprise, he had autojoin on. I HATE autojoin. At least be a man to write /join #channel. I was so, but so fucking pissed at this point that I banned him from the channel.
Also void unbanned you minutes after that.
TL; DR: He did shit on my minecraft server, annoyed me in the channel, I kicked, he had autojoin, I was mad already, I banned him.
He got unbanned minutes after that.