"Oh, this?" says Suzi. "I found this in Dr. Marks' office. It can shrink or transform or make things grow, or even control living things. I tried it out a little before. I don't know what happened to Dr. Marks, though; maybe he did something with the gun that messed him up. Here, I'll show you how it works."
Suzi then takes the gun, turns it to "shrink," and fires it at an office chair, shrinking it to a few inches in height. She then switches the gun to "grow" and makes the chair twice as big as normal, to the point where a couple of her co-workers have to back away. She then switches to "transform" and turns the giant chair into a giant tampon about fifteen feet long. Suzi watches the women in the office stifle laughs as the men initially act confused and then recoil in horror as they figure out what it is. Suzi smirks for a minute: she loves making people in the office uncomfortable. She leans over and strokes one end of the tampon for a moment, and turns and asks her co-workers, "hey, anyone having a really bad problem this month?" She laughs to herself and turns the enormous tampon back into a normal-sized office chair.
"Here," she says, passing the gun over to the woman on her right, "try it. It's fun." The woman, a middle-aged woman in accounting named Karen, looks confused for a moment as she holds the gun. She then turns the gun to "shrink" and points it to a mug on her desk. She turns away and closes her eyes as she pulls the trigger, and when she turns back to look, the mug is so small it appears like it's gone. Suzi walks over to the desk and scans the surface for a moment before shouting, "hey! I found it! It's smaller than a grain of sand!"
Karen goes over and takes a look at her minuscule mug too, and laughs when she finds it. "This IS fun!" she says, and then she fires the gun at one of the guys in the office. She turns him into about half his height, just under three feet tall, so that he's now eye level with Karen's crotch. "Hey now, what are you staring at?" she says with a grin, and turns the gun to "grow" before returning her co-worker to his original height. "Wow," she says, handing the gun back to Suzi. "That was neat. There are so many things we could do with this."
"There sure are," says Suzi. "Who else wants to try it?"