What would be perfect is Matt Smith regenerating into Rupert Grint, who promptly crashes the TARDIS while dancing around crowing that he's finally a ginger, and regenerates again into whoever the new Doctor is actually going to be.

I fully support your right to bear a musket, a dueling pistol, a flintlock, a foil, epee or saber, or any of the other arms the founding fathers were familiar with. I find it a dubious proposition that they'd support the unfettered right to bear, say, Uzis, bazookas, hand grenades, stinger missiles, etc.