What is up with Mr Fowler? He's either a very crappy teacher or a secret bad guy who is trying to send some very dark messages to his class. Maybe both. 

Google tells me that boggles are like barghests. Barghests certainly fit the description of what Snape and the otherkids saw. Maybe Mr Fowler is the barghest. He just traded in his scariness for bad teaching skills. Why drag a kid into a rabbit warren when you can make them read Shakespeare aloud to the class? I know which I'd have preferred at age 8.  Still, seems unlikely.

Judith's boys are as obnoxious as she is.  

Harry trying to casually bring up the rabbits was pretty well done for a child, but obviously Snape is Snape.

Tobias isn't at the pub.  He's hanging around Papagema.  I don't believe he's drinking though.  I think Severus used magic to ensure that wouldn't happen or that he'd know if it had.  

I like Harry and Snow's changing relationship.  Good for her for getting him to do some schoolwork!

Interesting back story. Of course Severus would be considered as the one totally to blame.