I absolutely loved the dialogue in the beginning of this!
When Oswald says, "This filthy drunk is right." I'm wondering why.
And there was no reaction from Jasper afterwards. He just disappeared it seemed.
I think on page 7 the story started to fall apart. I didn't understand the elaborate prank because the shotgun seemed to work as far as I could see. It didn't make any sense then. By the time the priest and his merry followers are trooping up the street, I was lost as to what was going on.
Just work out the story a little more and keep up with the excellent dialogue work.