Quotes / Shapeshifter Baggage

"You can't DO that!"

"It's only a Transfiguration," said McGonagall. "An Animagus transformation, to be exact."

"You turned into a cat! A SMALL cat! You violated Conservation of Energy! That's not just an arbitrary rule, it's implied by the form of the quantum Hamiltonian! Rejecting it destroys unitarity and then you get FTL signaling!"

Where the hell were my car keys while I was transformed?

Ling: "Did you notice [Envy's] footprints, back when we were fighting in the forest?"
Ed: "What?! No! What's your point?"
Ling: "Just that he's freakishly heavy for the size of his body. He might be a bit bigger than he looks."

The Sixth Doctor's regeneration into his seventh form brings us to a great and terrible mystery - what happened to the rest of him? Where is all the left-over Doctor? Stored somewhere, perhaps...in secret vats?
Strax, Doctor Who, "Deep Breath" prologue