Tess in her RATI (instinct test) was the very first run of the day. She didn't know why we were there, so she figured it was lure coursing. When she couldn't find a bag to chase, she came back and found the rat in short order.
Pirate, agility dog, does not tunnel. He really, really likes hay bales. Oh, and there's a rat here.
Before the RATN (what will be the Novice titling level when we get to play for real), I showed Tess a rat in a cage. Therefore, her attempts to leave in this were not because she wanted to run around and look for a bag, she wanted to go back to the rat I showed her. Once she figured out there was a rat with us, she was on it.