Call it long days and short nights. I am currently helping my student finalizing his bachelor thesis as deadline is quickly approaching. We discuss, we even fight, and we work extensively long in these days. He already told me that he wishes to become a gardener instead of studying physics, but I keep him going and I keep him smiling. I think he likes my amusing fashion to explain and to clarify. Teaching is fun. Somehow, it is like creating gravitational ripples within the spacetime. For sure, someday he will be there to help the next generation of students.