Use "pertinence" in a sentence

1. “Inspector,” Terence protested as he obliged and dismounted, “I really don’t see the pertinence of this

2. "Oh, but you know," she quite adequately answered, "that you might come back, you dear, and that you HAVE!" And after a little, when she had got into bed, I had, for a long time, by almost sitting on her to hold her hand, to prove that I recognized the pertinence of my return