I'm afraid I don't have any strikingly peculiar addictions.
I did blow out one of the speakers in my car playing Rachmaininoff's second piano concerto, though. I play classical as loud as my junky car speakers will allow, with the windows rolled down, in any weather. Rain, snow, icy rain, rainy ice, meteors... it's all good with Brahms playing. I also nearly got frostbite on my face for doing this when it was about -15 degrees C outside, but it's worth it.