Saber plainly stated his conjectures with his usual candor.
“But judging by the importance of your battle in front of the hospital, it’s reasonable to suppose that you sent the majority of your forces there. And given that no reinforcements came, I’d guess that a bare minimum stayed to guard the Master you work for and you have around thirty police officers working with you. Am I right?”
“. . . I don’t consider that information necessary for our escape.”
“You’re certainly honest.”
“What do you mean?” Vera asked suspiciously but remained expressionless.
“It’s entirely possible that you’d dispatched another hundred officers to other important locations,” Saber explained, “but your brief silence and the way your eyes moved made it obvious that I guessed right.”
“. . .”
Vera fell silent.
“. . . Wasn’t it kind of mean of you to go out of your way to point that out?”

Fate/Strange Fake: Volume 6, Chapter 17 ("Breaking Dawn & Wakeless Dreams II")