My notes for the original creation of this strip back in 2006 reveal the following:

“Some strips pretty much write themselves, while others emerge as a result of focused Brain Fist writing sessions. This week’s strip is an example of the latter and – I think – a pretty successful example. Sometimes when I have to actually sit down and make myself write an episode of BF, I worry about the outcome feeling a bit too forced. But in this week’s strip I’m particularly pleased with how well everything came together after the initial push.”