I'm sure there are a ton of comic book junkies who will tear me to shreds for asking this, but between the movies and the comics/graphic novels, I couldn't figure out why Batman never kept his sword. I mean think about it; in Batman Begins Bruce trained and trained with the sword, and then never adopted it into his bat gear. And as far as the comics/graphic novels went, I only once saw Batman duel Ra's with swords. Anyone...?