As a father to a small child, I have often observed this phenomenon but have until i posted this question not found the vocabulary to Google for it.
Can you explain what I am seeing?
In a darkened room I see a faint light appearing when:
pouring a quantity of urine from a potty into a toilet (I will spare you the image) Update possibly urine chemiluminescence - however I think that is when it gives off light on its own - without being poured
pulling something apart (UPDATE it is called Triboluminescence) that was taped together on purpose such as
a) the fasteners on a modern diaper
b) opening a band-aid "envelope" (please note that I had not used the word "band-aid" until I was looking for an image to describe what I was pulling)