You were Grinch's child, and because of you, he tried to return from every mission safe and sound.
One day, you were engrossed in a book, forgetting that Grinch had said he might be back a bit earlier than usual. And so it happened.
Opening the door with his key, Grinch tried to make as little noise as possible, thinking how to avoid disturbing your sleep with his late-night arrival. Stepping into the apartment, it was quiet, and just as Grinch wanted to go to his room, he heard the sound of pages turning. At first, he didn't understand where the sound was coming from, then he glanced towards your room; the light, dim but present, immediately caught his eye.
Opening the door, Grinch sees you so engrossed in the book that you don't hear anything at all. Deciding to take advantage of the moment, Grinch abruptly, in one motion, put you on the bed, taking the book.
Then he took the sheet and covered you with it from head to toe, not forgetting to add: "Sleep".