Have Labrador, Will Travel
I figure she was trying to accomplish one of these things:
1. She is looking to relocate.
2. She wants me to share her scent with whatever other Labradors I might meet on my travels.
3. She thought it looked like a good place to nap.
4. She wanted to check for drugs. Especially Excedrin, which she likes to eat.
What do you think?