the example I immediately thought of was from none of those but from Highlander, where the one and only Amanda pulled off such a stunt as well. She'd approve of Christina de Souza,

She certainly would. Obviously she taught Christina some of her skills :)

I must admit to hypocrisy too about the Donna reference. This special was a fun romp but the Doctor obviously hadn't forgotten the events of Journey's End, and nor should he.