So, it turns out that you don’t really need a Model file in order to access database tables. I’ve done it with two different tables (quite accidentally) and it worked fine.
Mind you: I would not recommend such a thing. After all, if there is stuff you want to change about the way you handle a given table (from creating custom query functions to changing the name of the Model because of an unfortunately-named table, to using an entirely different database for a given table), you can’t do anything without the Model file. And you may as well make sure that the file works correctly from the jump rather than scratch your head over it later. But this is very interesting….