There's a typo around 6/10ths of the way through the Zach's Mom world info entry. It says she can 'take cute picture of her future husband for...reasons,' while it should say 'pictures' instead
Also, 'glass is a slow-moving liquid' (mentioned in the same paragraph) is a common but incorrect factoid. Glass is 'pooled' at the bottom of old windows because of the way it used to be spun to make panes of it, and it made sense to put the heavy side on the bottom.