Man, this was a hard one to write. Initially it was 4 panels, with the gag being that Master Pi Zhu just started hitting Jack some more. 
That would have been acceptable in a TV show or movie, but doing basically the same joke in the next comic strip would have been weird.  I had to progress the plot.
Once I decided to expand to the bigger format, things fell into place.  Not only do we know that Master Pi Zhu hates bugs (which could explain why he has a fly swatter handy), but now Jack has made him an offer in exchange for his help.
Plot progressed.
John Vogel white