Glow in the dark underpants?

I just passed through Zellers looking for some new underwear for my five-year old son. Is it just me, or does anyone else have a problem with glow-in-the-dark underwear? The selection was vast for I-kid-you-not briefs with glowing emblems on the front. Who on god's green earth would want their son's genitals exposed for a lengthy amount of time to such a substance? It's things like these that make me want to renounce civilization and go live in a cabin in the woods.