So, I normally just drive trains in TSW, I don't often go for a walk around the stations but, I did this morning when in Leven and a found a very well behaved dog called Loki (name on back of his jacket) sat next to a ticket machine. Generally in TSW if someone or something specific is featured such as in this case Loki, there's some special reason or story but, I don't remember seeing anything in the launch material for the Leven line about Loki. So, is there a particular story/reason for Loki at Leven station?
https://m.facebook.com/story.php?story_fbid=978015621019208&id=100064323386475 If you search "scotrail loki" you'll find more stuff.
Sorry für the short answer. I had to hurry. Some time back I was in the same situation as you. Maybe we are just "dog-guys". If you find more interesting things about this, let me know.