What was the dosage they gave it? Was this like the rat cancer experiments where they feed them 1,000 times the equivalent human dose?
Here kitty, kitty..... eat this, it's the key..... the key to the universe.
Edited to add: In high school, I had some friends over one friday or saturday night when the folks were gone. Our cat gulped up copious amounts of spilled bong water. Within the week, it freaked out and latched onto my stepdad's face while he was watching tv. Some cats can't handle their buzz.