Page 46 of Mining for Trouble has been posted, and we're one page away from the final note on the pie gag.
The pie dropping on Boulder began as a way to clearly work out some spacial relationships between the action in the gorge and the teetering cliff face (which I'm sure you've figured will be a plot point soon), but it soon became apparent that it was an opportunity to express something I think is essential about Boulder--he's the kind of guy who not only turns a "humiliation" into a plus (hey, free pie!), but he isn't too cool to express some gratitude in the process. Maybe it's Zen, I'm not sure--I just know it's a quality that all of my personal heroes (both real and fictional) have shared.
Oh, and you can see that in the final page I introduced one more bit of dialogue in panel 3. Again, it was one of those funny opportunities that came out of a functional need. Boulder's dialogue as it is on the thumbnails came in a little too abruptly after Sapph-Fire's balloon in the previous panel. I felt that we needed a 1.5 beat of dialogue between those two balloons--something like "Wow, that was great!" Which turned out to be a nice way of showing Boulder's simple brand of gratitude.