Look, it's all he can do to run down those steps let alone trying to run back up them. Anyway, getting back here produces an almost Pavlovian Response in him to run faster. And he does. Only to startle as she's by the door which is fine because then he goes flying over her foot and staggering along windmilling a bit until he catches himself by barking his elbow against a statue.

"What did you do that for? When someone is running away, it's polite to let them."