Sherlock Holmes, of all people, has his moments in Children of Time, particularly once he's well and truly in love with Beth Lestrade of Sherlock Holmes in the 22nd Century. The following dialogue is from a largely serious conversation that descends briefly into a terribly cute moment:
Beth: (smiles sadly) So shut up, seriously.
Holmes: (blushes, closes his mouth meekly)
Beth: (giggles softly) You are such an idiot.
Holmes: (raises eyebrow) Are you expecting me to argue that point?
Beth: (laughs) Oh, look at that: you're actually learning! Don't worry — you're my idiot, so it's all good. (tentative grin)
Holmes: (smiles back hesitantly) Am I?
Beth: (sighs in exasperation) Are you trying to prove my point?
Holmes: (sheepish grin) I seem to be confirming it further with every second word.