«It is customary, I think, to have an imaginary friend only during one’s childhood. You are to be congratulated on your persistence.»
«Reinette. Well. Goodness how you’ve grown.»
«And you do not appear to have aged a single day. That is tremendously impolite of you.»
Reinette and The Doctor in Doctor Who: «The Girl in the Fireplace»
Prior to getting woke, Doctor Who had many great scenes. Among others, this one when Madame de Pompadour met a roughly (well over) thousand year old time traveller.
And the resulting banter shows very well what quick-wittedness can get you:
Yeah, that’s something to strive for.
