"Dolphins don't use tools, though, do they?" Dementia asked.
"On the contrary," I answered with a straight face. "Dolphins have been known to take long strands of seaweed and weave them into elaborate knotwork."
"I've heard of those," Dementia said. "They're called 'Kelpic Knots'."
I stared at her as my jaw sagged slowly to the floor. I blinked. I kept staring. Eventually, I said, "I think that just broke something in my brain."
Dementia just smiled.