Bizarro (the daily comic): What's with the Pie & the TNT?

You know Bizarro? One of the only decent comics left? (Yes, I know it liberally borrows from Far Side, but, at least it isn’t plagiarizing Hagar the Horrible). Anyway, notice how he always has a slice of (blueberry?) pie and stick of dynamite in every panel? It’s odd. It needs to be explained to me. I guess the pie might be short for his name (Piraro), but that’s what we call an “uninformed deduction” as opposed to a fact. Can anyone shine a light on this for me?

All explained here.

No mention of the dynamite there. Although, after reading that, I know understand that “explanation” of these things are impossible. Truly weird. Let’s get some pie.

From here: