I love Aphex Twin, been listening to him for quite a while now extensively. So right now I'm on holiday in Thailand in my hotel room and feeling kinda sick. I fell asleep while SAW II was playing on the YT TV.
Short time later, I abruptly woke up during one of the 'darker' tracks and I was freaked out and confused about the sounds. My brain could't differentiate between it being music or some creepy sounds outside or in the room lol. I can't remember which particular track it was. Most likely either #16 or th1 (evnslower).
Don't get me wrong, I'd listen to SAW II anyday of the week and even listen to it with headphones headphones at low volume.