In this sequence we see Gus ask for keys, be happy & amazed that he got them and then promptly assume complete ownership:
(and, yes, these are leftover from Sunday -not many interesting photos today with my head in my computer for 6 straight hours)
What is it about keys? Javin loves to eat my keys too. Must be the jingle they make.
Or all the chewing surfaces. Madeleine goes after my keys as well. I suppose that’s why the plastic key toys are popular.