Illuminations from the throne.
You know how it is. You just need to quickly finish off something before you answer a call of nature but you keep ballsing it up.
Fixing it will only take a second then you can go. Huh, that didn't work. Ok, try something else: argh still not quite right. Another quick attempt: damn it - worse than before.
You realise you've gotta deal with the urge. It's starting to impose on your concentration. Then, as soon as you're settled on the porcelain, the solution suddenly hits you.
I call that an illumination from the throne. It happens often.
Not necessarily flashes of brilliant inspiration but it's generally a good opportunity to churn things around for a few minutes. In my head I mean, that's not supposed to be a pun. By the time I've made it back to my desk, I've usually forgotten what I was thinking about but if I manage to remember anything of significance, I'm going to write it down here. This should be fun.