As a person with a fondness for arts and crafts, you had a tendency to be a little messy. You'd have paint, marker, or pen marks on your hands, little glue bits in your clothes, and things like popsicle sticks and pom-poms scattered about your bedroom. Kinda like Pigpen from the Peanuts if his dust cloud was made of craft supplies.

But of all your craft supplies, the most dastardly fiend was... glitter. It was gorgeous and shiny and made your inner crow squawk with untold joy, but it also made a horrific mess that wouldn't be fully clean for at least a decade. Truly the Jekyll and Hyde of craft supplies.

On one lovely occasion, you woke up to find that the Doctor had left you alone in the TARDIS, likely for an errand or perhaps for some adventure that he deemed too dangerous for you. He did suck at sitting still, after all. Being left to your own devices, you decided to pick up a crafting project that you'd had in the works for a while. Might as well, while you had the time.

One problem: the heat conked out. Maybe the TARDIS was doing some routine maintenance, or maybe she was encouraging you to head out of your room lest the Doctor returned, but at the end of the day, you were cold. Solution: go to the console room. Surely it'd still be warm there. You scooped up your crafting supplies, including a jar of glitter, and ventured out to find a warm room.

Fact #1: Yes, the console room was warm. Fact #2: The floors in the console room were uneven. Fact the Third: you had a habit of tripping in the console room. So it should come as no surprise to you that you tripped, lost your grip on the glitter jar, and found yourself watching in horror as it shattered into smithereens and a cloud of glitter plumed up from the floor.

Did I mention it shattered on top of a vent that was actively expelling hot air?

As you bore witness to this travesty, the Doctor walked into the TARDIS with a piece of alien tech that he'd show you later. He stopped in his tracks, opened his mouth, and...

"Why?"