The dog that wanted to become an engineer

There is a stray dog that lives on our college campus. He is a black and white dog (mostly black). Although a stray, his coat is always clean and shiny and he looks well-groomed. The most noticeable feature of this dog is his expression. He seems very wise and is somehow different from other dogs. A lot of people feel the same way. There were rumors that he was born the same year that our college founder died and that he too was very fond of him! Students, watchmen, maintenance staff etc have a soft corner for him and never shoo him away.
During our first year, our classroom was on the 3rd floor and there were multiple halls and corridors through which one would have to come through to reach our class. Also, dogs aren't allowed inside buildings. One day, this dog had come up to our class (on the 3rd floor) and had slept under a desk before students arrived! We were all surprised, but no one minded him as most people liked him and he was sleeping peacefully. He stayed there for the entire length of the class and just after the teacher left, he left! He stayed there just for that one class!
We had that particular class (Engineering Drawing) only once a week. Through the week he never came back. Interestingly, the next week he was there again! Sleeping under the same desk for the same class. We were all truly surprised to see him there again. He did the same thing... slept through the class and left at the end of it. This repeated five or six times during the semester (not consecutive weeks though). But only for that one class. The teacher was as surprised as we were and said that he had never fed him or spoken to him at any time. We never got to know why he used to come there and it never repeated. Maybe he was interested in learning Engineering Drawing!
I thought I'd take his picture for this post, but I haven't been able to find him in the last couple of weeks. I hope he's fine and has just decided to move away to another part of the campus.