# This helper method helps DRY out the code for database queries, and it
# does so in an incredibly robust and inefficient way -- by creating the
# table and evicting expired rows before every single query. A caveat, of
- # course, is that the special ":memory:" database doesn't work correctly.
+ # course, is that the special ":memory:" database doesn't work correctly,
+ # but ":memory:" isn't *persistent* storage anyway.
db = SQLite3::Database.open(settings.persistent_storage)