Once, many years ago I registered a nick Dybbuk -- dybbuk is an evil spirit in Jewish folklore.
I then posted a message saying that I just pulled a rubber boot over my head, but because I could not see anything, I took a knife and made two holes in the boot, and doing so accidentally punctured my eyes.
Some posters here immediately shouted: Troll! Troll!
Of course I was not trolling, it was just my poor attempt at being funny.
I left on the quiet and abandoned the nick Dybbuk for good. I have no idea if the nick got banned, but if it didn't, I don't have the remotest idea what the password attached to the nick was. It was many years ago, and I was too ashamed to tell anyone that I was behind that nick and Dybbuk was not a troll.
That was the last time I had another nick in addition to this and Plyushkin.