Let me run through the internal thought process you seem to be proposing here real quick.
...is she gone? Oh thank God, she's gone. Damnit, I can't believe this. This
fucking power. I thought the last guy stalking me for it was bad, but of all the people I could've healed this morning, I had to run into the crazy power-reading God-cape. Of course.
At least she doesn't seem to want anything too insane from me. If that's all it takes from my power to impress her, I might be able to deal with this- wait, shit. She's not going to just accept the same trick over and over again, is she?
<Not if I have anything to say about it.> When she comes back, she's going to want something
new. Shit shit shit. Ok. Alright. I can handle this. She was satisfied by changing chlorophyll into betalain, for fuck's sake. How hard could this be?
<Not at all. Come on. Come on. You can do this, Host! Don't you puss out on me now!>
Still, I don't want to mess this up when she comes back. I guess I should probably... practice?
<Yeeeeeeeessssssssss> It's better than the alternative, anyway. It's still dangerous, but... I'll just stick to this
one plant. Nothing else. Ever. That should be fine, right?
<Right.
> Right. Now, let's see. A pigmentation change is a good start, I guess, but these leaves are kind of boring. Awfully uniform. I wonder if I could... ooh, that's much prettier. Goes much better with the new stem, too. Though this reproductive system is a bit inefficient? What if I...
...
<ECSTASY>
Huh. This is actually kinda fun-
*Carol bursts into the room in full costume*
<GODDAMNIT>
"Amy! Get dressed, we- what on earth are you doing?"
*Amy flails, throws plant through window*
"Gah! Nothing! What!?"
"...nevermind, there's no time. Titania just kidnapped Victoria. We need to leave."
"What!? Why? What the hell for?"
"We don't know yet. Mark thinks he overheard something about "improving understanding of human social interactions," but-
*cell phone rings*
"Brandish speaking. News? Oh, thank God - wait, the PRT Headquarters? The Ward's base? Why... a
tea party?"
*Amy, halfway into robes* "What's going on? Tea party!?"
"They're watching them on the security cameras. She teleported with Victoria into the middle of the Wards common room with a full Victorian-era table spread, then invited them to sit down and- oh, great. Clockblocker elected to say something before the negotiators arrived and now she's taken them all to Fugly Bob's. Which somehow currently resembles an 80's diner."
"Oh. Well, I've fallen into total despair, now. I've become a monster. My life is over."
*Carol is halfway out the door again* "Sorry, what was that?"
"I suppose I'll just go find a gun and blow my brains out. Nothing better to do. Except maybe turn myself into a hideous Nilbogian monstrosity. I guess that might be something worth doing for some reason."
"Amy, what the hell are you talking abou- oh, seriously? MARK! MASTER/STRANGER PROTOCOLS, STAT!"
Yeah. Not seeing it.
Maybe the QM might consider a change to a more semi-serious theme?
I find I lack the vocabulary to express just how bad of an idea I think that is.