I had an incident like this when I was in University. There was a guy in my ​class who struggled with a major project, and he asked if I could help him with it

I had an incident like this when I was in University. There was a guy in my ​class who struggled with a major project, and he asked if I could help him with it. He wanted me to show him how to get started, but he would never meet with me, and wanted to see my code. So I stripped out the most critical part of my implementation, and shared it with him. After weeks of silence he asks for help again, I ask him to send me what he had... And it was the exact same code I had sent him weeks earlier with very little changes. He had been asking everyone for their code and trying to copy and paste it together. I ended up going to our professor about it... And he knew who I was talking about before I finished explaining everything. It was not his first time in the class, and he had done it before. He somehow graduated with a CS degree even though it took him a few more years.