Whomstever had the bright idea of programming Runescape's bug reporting interface such that it had little bugs crawling across the interface with a message that would appear after clicking on 500 bugs must've had a lot of free time on hand. I'd probably say the same about whoever found out about that feature unless it was leaked by the jmods.
That's also the kind of programmer I strive to be. Adding in small, innocuous, and secret features that take a while to discover. That's also the kind of artist I strive to be, but I already do that by pulling weird stunts by, for example, parodying