Then you can use that same black light and put on some of your old glow-in-the-dark clothes and pretend to have a disco party!!
I've heard of that stuff, too, but haven't tried it. Thank goodness for tile floors!
The thoughts of having a black light just lying about the house - I don't know, just kind of struck me as funny!!
Although I have a cabinet full of needles and syringes, catheters (IV type), lactated ringers, etc., etc.