I'd like to tell you about what happened to me last Sunday. I woke up very early and went for a walk with my dog, Timmy, to a nice park. I was feeling a bit bored, and, since I couldn't see anyone around, I started to talk to my dog about different things: literature, science, politics... When Timmy decided to go back home I heard somebody laughing. Yes, I wasn't the only person in the park!