I mean, if you ask for a CT--or even talk about them in general, you may get a smart-aleck one instead, like Bigluigifan1.0's "A Good Custom Title." The mods/admins like messing with people (well, many of them do). XD
Some CTs also come from chatroom incidents, like Markio's "Sapphira" one.
Ultima Shadow's "your old title" is an example of both.