They tried to teach us the names of the cases at school, but I never learned them because that seemed to me perfectly pointless information, and I staged one of my few rebellions over that. It did not help at all that they were all loan words which I could not at that time derive from any other knowledge, and that many of them sounded very similar to each other. Like inessiivi, illatiivi, allatiivi, that type of bullcrap.
And then when I was in my twenties, I learned that *some* teachers had actually given their pupils a handy little mnemonic litany they could memorise and then know immediately which was which.
Bitter?
ME?
Nooooope.