Medi-bay madness

Who: Cerebrum and the medi-bay nuts, er, staff
Where: If you haven't guessed by now, you're dumber than you look,
it's the medi-bay
When: During some time frame
Cerebrum walked into the medi-bay, looking for something to do. What
drew his attention, oddly enough, was a pair of newts and a chipmunk
fighting.
"What's going on here? Is this like a dog fight or something? Can I
place a bet?"
"No," responded Wildflower, "Keto and Tara have been turned into
newts by one of Keto's ointments, and Hazel was turned into a
chipmunk by another one of his ointments."
Cerebrum thought about this for a moment, "Come again?" he said. He
seemed to be saying that on this ship a lot. Oh well, it beat being
threatened to be put out of an airlock sans space suit.
"Keto and Tara," Wildflower repeated.
"Got it," Cerebrum responded
"Have been turned,"
"Yes, I'm with you,"
"Into newts,"
"Say what? I didn't hear you right. I could have sworn you said they
were turned into newts." Cerebrum said.
"They were." Wildflower said.
"Really?"
"Yes."
Cerebrum walked over to the newts and the chipmunk, "So these newts
are, in fact, not ordinary newts, but actually Tara and Keto,"
"The other one's Keto, that one's Tara."
"And this chipmunk is, in fact, not an ordinary chipmunk, but Nurse
Coffey."
"Yes, that's right."
Cerebrum pondered this for a minute, then produced his notebook and
pencil, "Lie down on that examination table will you? Now, tell me
how long you've thought that these newts are Dr Keto and Tara. We
must understand the causes before I can determine how to eliminate
your delusion."