So we all know that when she asks him if he wants to go for a run with her, he's going to demur. I had my iPhone ready to catch that. Watch what happens in this video.
First, he enlists my help. Please don't let her do this, Mether. You know I can't leave you. Something might happen to you. Sorry, Bacon. I'm making a video of you, can't help you now.
Then, when carried outside and called to join Phoebe and Liam, he pretends he's seen something around on the other side of the house. Pretending is a fairly sophisticated means of deception, but it's used by all kinds of animals, from great apes to birds. Jays and magpies will pretend to bury something edible when they know they're being watched, then "palm" the item and quietly hide it elsewhere. Piping plovers and kildeer, among others, do an amazing "false brooding" behavior that's fooled me many times--settling down onto empty sand just as if they had eggs or chicks beneath them. You go to investigate, and the bird runs off, leaving an empty depression, no eggs, no chicks.
So Chet dashes off around the corner as if there's a deer to be chased. He comes back, knowing the ruse didn't work, but decides to try it again in another direction, pretending to study something out in the meadow. Oh look. A deer or something. Will ya look at that?
Finally Phoebe tells him that they'll go look for Mether, the trick she uses when I'm traveling. This is a suggestion he clearly finds flat-out ridiculous, and he turns on his heels and trots decisively right back to me. His brisk pace, laid-back ears and head angle say it all. Can you believe this girl? You're right HERE. Stick a fork in me, I'm done.