Do not know what to code

What does /prog/ do when it's bored and doesn't have any idea on what to code?

I have no ideas for any programs that I or someone else would find useful really, but I am so bored.

What do?

>>39 ty for a serious answer =)
r.b.m's too are quite neat, but then you meet the next barrier(?)/how to automatically build them (& do so appropriately..)
mentifex is kind of interesting as a feedback loop since there is a black-box style human element (dialogue).. Don't suppose it would run in monolog // self-conversing system?