We learned that when one BITES a glow stick, especially a cheap skinny glow stick, one can puncture the glow stick and drippy, ghostly, glowing fluid can flow out and make glowing splotches on the floor and on one's tongue, AND when one has glowing splotches on one's tongue, one screams and cries in a panic because glow fluid apparently feels like liquid fire.
Tonight Silas got liquid fire on his tongue and cheek -- bright glowing green splotches. After flushing his mouth with water, which made the green go away but not the burn, I called poison control (very calmly, I may add, especially considering I had to call 1-800 directory to get the number first while Silas was wailing in the background).
It turns out I love poison control. Never hesitate to call. In fact, memorize the number right now (why hadn't I already done that?) 1-800-222-1222. They were calm. They knew all about glow stick burn -- that it would burn intensely but not for long, that eating something coating like yogurt or ice cream would help the pain subside, and that all symptoms would vanish in minutes. Then a bit later they called to follow up.
Everyone is now asleep and hopefully will not chew glow sticks again for quite some time...