Recently, I've been toying with the idea of one of my characters losing their hearing permanently (not something to be done lightly, I know). I've thought of many different effects this could have on them psychologically, physically, and emotionally, but the cause has been more elusive. I don't really want it to be a random accident, as that feels somewhat anticlimactic for such a large change, so I've been thinking of ways an antagonist might forcibly deafen them. The problem is, I can't think of any ways to deafen someone other than constantly forcing them to listen to unbearably loud noise (which seems like it would take a long time for permanent total hearing loss), or physically destroying the eardrums with a long, thin object (which I'm not even sure is actually possible, considering the width of the ear canal). Anyone have any ideas for how this could work?