Can anyone parse the motion lines in the 'Ghost spit?' panel? Hench Wench is pretty obviously throwing a right hook, and Concretia's head is knocked that direction, but the motion lines are... I don't even know. They trace a line of motion that would mean she brought her right fist from up high into a weird abortive backhand-turned-into-a-punch? Dave is usually pretty good with the motion lines, but every once in a while he throws in some that make no sense to me.
EDIT: And the 'Max's Sonic Boom' thing was addressed in the comic/author's notes
here.