I have been telling DH that our toilet paper is crazy because if you go for a wee in the night and grab a handful of toilet paper, it sparks with lights, like static. I was excited by this and couldn't wait for him to experience it himself. I even wondered if it might catch fire if you rubbed it together long enough! I have been curious to know what it contained to cause this. You wouldn't expect such a thing from recycled paper.
DH pointed out this morning that what I'm observing is flashes from the sensor light on my wristwatch (HR monitor) 😌