My word, but this would break _so much_. I would like to think that I've managed to keep my wits about me enough over the years that I haven't got any code needing to find both 'A.txt' and 'a.txt' in the same place... but I really wouldn't put it past past-me to've screwed that up... that guy's just the worst.

edit to add: I don't think I ever noticed Android being case-insensitive. Always something new to learn!