It's fair to say that Albertina Fogaça was stumped.
Somehow, her playful little dog named Pingo kept getting out of their front yard in Brazil to go on adventures — despite having no obvious means of escape. "I don't know when it began," Fogaça told The Dodo. "All I knew was that he was getting out when the gate was closed."
Fogaça decided to solve the mystery of the disappearing Pingo once and for all. So, one day, armed with a camera for proof, she put her pup in the yard and waited.
Here's what happened next: